The worst impact of the coronavirus as of early April has been in urban areas, but the problem is quickly spreading to less dense regions. Hospitals and public health agencies in the nation’s rural counties, many of which were already struggling before the pandemic took hold, may lack the resources to respond, in part because of shrinking populations.
\\nAs data released March 26 by the Census Bureau shows, most of the nation’s rural counties have lost residents since 2010. Population losses weaken a region’s fiscal and economic health, eroding its workforce and productivity as well as the tax revenue available to fund health care programs. With counties serving as critical providers of hospital and public health services, the decline in the rural tax base has probably weakened the nation’s ability to respond to the crisis in many large, less populated areas.
\\nThe figures in this interactive show total population change in each county in every state since 2010, and in the U.S. overall. Although 46 states saw growth overall (shown by the black line), there is a noticeable difference between urban counties (the orange lines) and rural counties (the blue lines). There are exceptions, however. For example, McKenzie County in North Dakota more than doubled in population from 2010 to 2019 because of a boom in fracking. But nationwide, nearly 2 in 3 rural counties experienced population losses, compared with 1 in 3 urban counties.
\\nAs state and federal policymakers craft responses to the pandemic, they should keep in mind the hurdles faced by local governments in rural areas.
\\nNote: Areas are designated as urban or rural by the Census Bureau every 10 years. We used the 2010 definition, so some growing rural areas may be counted as urban in the 2020 designation. For the purposes of this analysis, a county is classified as rural if its rural population share is 50% or more. Four states—Connecticut, Delaware, New Jersey, and Rhode Island—have no rural counties. U.S. population numbers include the District of Columbia.
\\nJeff Chapman is a director and Alexandria Zhang is an officer with The Pew Charitable Trusts’ state fiscal health project.
\";","export default function(a, b) {\n return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;\n}\n","export default function(start, stop, step) {\n start = +start, stop = +stop, step = (n = arguments.length) < 2 ? (stop = start, start = 0, 1) : n < 3 ? 1 : +step;\n\n var i = -1,\n n = Math.max(0, Math.ceil((stop - start) / step)) | 0,\n range = new Array(n);\n\n while (++i < n) {\n range[i] = start + i * step;\n }\n\n return range;\n}\n","export var slice = Array.prototype.slice;\n","export default function(x) {\n return x;\n}\n","import {slice} from \"./array\";\nimport identity from \"./identity\";\n\nvar top = 1,\n right = 2,\n bottom = 3,\n left = 4,\n epsilon = 1e-6;\n\nfunction translateX(x) {\n return \"translate(\" + (x + 0.5) + \",0)\";\n}\n\nfunction translateY(y) {\n return \"translate(0,\" + (y + 0.5) + \")\";\n}\n\nfunction number(scale) {\n return function(d) {\n return +scale(d);\n };\n}\n\nfunction center(scale) {\n var offset = Math.max(0, scale.bandwidth() - 1) / 2; // Adjust for 0.5px offset.\n if (scale.round()) offset = Math.round(offset);\n return function(d) {\n return +scale(d) + offset;\n };\n}\n\nfunction entering() {\n return !this.__axis;\n}\n\nfunction axis(orient, scale) {\n var tickArguments = [],\n tickValues = null,\n tickFormat = null,\n tickSizeInner = 6,\n tickSizeOuter = 6,\n tickPadding = 3,\n k = orient === top || orient === left ? -1 : 1,\n x = orient === left || orient === right ? \"x\" : \"y\",\n transform = orient === top || orient === bottom ? translateX : translateY;\n\n function axis(context) {\n var values = tickValues == null ? (scale.ticks ? scale.ticks.apply(scale, tickArguments) : scale.domain()) : tickValues,\n format = tickFormat == null ? (scale.tickFormat ? scale.tickFormat.apply(scale, tickArguments) : identity) : tickFormat,\n spacing = Math.max(tickSizeInner, 0) + tickPadding,\n range = scale.range(),\n range0 = +range[0] + 0.5,\n range1 = +range[range.length - 1] + 0.5,\n position = (scale.bandwidth ? center : number)(scale.copy()),\n selection = context.selection ? context.selection() : context,\n path = selection.selectAll(\".domain\").data([null]),\n tick = selection.selectAll(\".tick\").data(values, scale).order(),\n tickExit = tick.exit(),\n tickEnter = tick.enter().append(\"g\").attr(\"class\", \"tick\"),\n line = tick.select(\"line\"),\n text = tick.select(\"text\");\n\n path = path.merge(path.enter().insert(\"path\", \".tick\")\n .attr(\"class\", \"domain\")\n .attr(\"stroke\", \"currentColor\"));\n\n tick = tick.merge(tickEnter);\n\n line = line.merge(tickEnter.append(\"line\")\n .attr(\"stroke\", \"currentColor\")\n .attr(x + \"2\", k * tickSizeInner));\n\n text = text.merge(tickEnter.append(\"text\")\n .attr(\"fill\", \"currentColor\")\n .attr(x, k * spacing)\n .attr(\"dy\", orient === top ? \"0em\" : orient === bottom ? \"0.71em\" : \"0.32em\"));\n\n if (context !== selection) {\n path = path.transition(context);\n tick = tick.transition(context);\n line = line.transition(context);\n text = text.transition(context);\n\n tickExit = tickExit.transition(context)\n .attr(\"opacity\", epsilon)\n .attr(\"transform\", function(d) { return isFinite(d = position(d)) ? transform(d) : this.getAttribute(\"transform\"); });\n\n tickEnter\n .attr(\"opacity\", epsilon)\n .attr(\"transform\", function(d) { var p = this.parentNode.__axis; return transform(p && isFinite(p = p(d)) ? p : position(d)); });\n }\n\n tickExit.remove();\n\n path\n .attr(\"d\", orient === left || orient == right\n ? (tickSizeOuter ? \"M\" + k * tickSizeOuter + \",\" + range0 + \"H0.5V\" + range1 + \"H\" + k * tickSizeOuter : \"M0.5,\" + range0 + \"V\" + range1)\n : (tickSizeOuter ? \"M\" + range0 + \",\" + k * tickSizeOuter + \"V0.5H\" + range1 + \"V\" + k * tickSizeOuter : \"M\" + range0 + \",0.5H\" + range1));\n\n tick\n .attr(\"opacity\", 1)\n .attr(\"transform\", function(d) { return transform(position(d)); });\n\n line\n .attr(x + \"2\", k * tickSizeInner);\n\n text\n .attr(x, k * spacing)\n .text(format);\n\n selection.filter(entering)\n .attr(\"fill\", \"none\")\n .attr(\"font-size\", 10)\n .attr(\"font-family\", \"sans-serif\")\n .attr(\"text-anchor\", orient === right ? \"start\" : orient === left ? \"end\" : \"middle\");\n\n selection\n .each(function() { this.__axis = position; });\n }\n\n axis.scale = function(_) {\n return arguments.length ? (scale = _, axis) : scale;\n };\n\n axis.ticks = function() {\n return tickArguments = slice.call(arguments), axis;\n };\n\n axis.tickArguments = function(_) {\n return arguments.length ? (tickArguments = _ == null ? [] : slice.call(_), axis) : tickArguments.slice();\n };\n\n axis.tickValues = function(_) {\n return arguments.length ? (tickValues = _ == null ? null : slice.call(_), axis) : tickValues && tickValues.slice();\n };\n\n axis.tickFormat = function(_) {\n return arguments.length ? (tickFormat = _, axis) : tickFormat;\n };\n\n axis.tickSize = function(_) {\n return arguments.length ? (tickSizeInner = tickSizeOuter = +_, axis) : tickSizeInner;\n };\n\n axis.tickSizeInner = function(_) {\n return arguments.length ? (tickSizeInner = +_, axis) : tickSizeInner;\n };\n\n axis.tickSizeOuter = function(_) {\n return arguments.length ? (tickSizeOuter = +_, axis) : tickSizeOuter;\n };\n\n axis.tickPadding = function(_) {\n return arguments.length ? (tickPadding = +_, axis) : tickPadding;\n };\n\n return axis;\n}\n\nexport function axisTop(scale) {\n return axis(top, scale);\n}\n\nexport function axisRight(scale) {\n return axis(right, scale);\n}\n\nexport function axisBottom(scale) {\n return axis(bottom, scale);\n}\n\nexport function axisLeft(scale) {\n return axis(left, scale);\n}\n","export var prefix = \"$\";\n\nfunction Map() {}\n\nMap.prototype = map.prototype = {\n constructor: Map,\n has: function(key) {\n return (prefix + key) in this;\n },\n get: function(key) {\n return this[prefix + key];\n },\n set: function(key, value) {\n this[prefix + key] = value;\n return this;\n },\n remove: function(key) {\n var property = prefix + key;\n return property in this && delete this[property];\n },\n clear: function() {\n for (var property in this) if (property[0] === prefix) delete this[property];\n },\n keys: function() {\n var keys = [];\n for (var property in this) if (property[0] === prefix) keys.push(property.slice(1));\n return keys;\n },\n values: function() {\n var values = [];\n for (var property in this) if (property[0] === prefix) values.push(this[property]);\n return values;\n },\n entries: function() {\n var entries = [];\n for (var property in this) if (property[0] === prefix) entries.push({key: property.slice(1), value: this[property]});\n return entries;\n },\n size: function() {\n var size = 0;\n for (var property in this) if (property[0] === prefix) ++size;\n return size;\n },\n empty: function() {\n for (var property in this) if (property[0] === prefix) return false;\n return true;\n },\n each: function(f) {\n for (var property in this) if (property[0] === prefix) f(this[property], property.slice(1), this);\n }\n};\n\nfunction map(object, f) {\n var map = new Map;\n\n // Copy constructor.\n if (object instanceof Map) object.each(function(value, key) { map.set(key, value); });\n\n // Index array by numeric index or specified key function.\n else if (Array.isArray(object)) {\n var i = -1,\n n = object.length,\n o;\n\n if (f == null) while (++i < n) map.set(i, object[i]);\n else while (++i < n) map.set(f(o = object[i], i, object), o);\n }\n\n // Convert object to map.\n else if (object) for (var key in object) map.set(key, object[key]);\n\n return map;\n}\n\nexport default map;\n","import map from \"./map\";\n\nexport default function() {\n var keys = [],\n sortKeys = [],\n sortValues,\n rollup,\n nest;\n\n function apply(array, depth, createResult, setResult) {\n if (depth >= keys.length) {\n if (sortValues != null) array.sort(sortValues);\n return rollup != null ? rollup(array) : array;\n }\n\n var i = -1,\n n = array.length,\n key = keys[depth++],\n keyValue,\n value,\n valuesByKey = map(),\n values,\n result = createResult();\n\n while (++i < n) {\n if (values = valuesByKey.get(keyValue = key(value = array[i]) + \"\")) {\n values.push(value);\n } else {\n valuesByKey.set(keyValue, [value]);\n }\n }\n\n valuesByKey.each(function(values, key) {\n setResult(result, key, apply(values, depth, createResult, setResult));\n });\n\n return result;\n }\n\n function entries(map, depth) {\n if (++depth > keys.length) return map;\n var array, sortKey = sortKeys[depth - 1];\n if (rollup != null && depth >= keys.length) array = map.entries();\n else array = [], map.each(function(v, k) { array.push({key: k, values: entries(v, depth)}); });\n return sortKey != null ? array.sort(function(a, b) { return sortKey(a.key, b.key); }) : array;\n }\n\n return nest = {\n object: function(array) { return apply(array, 0, createObject, setObject); },\n map: function(array) { return apply(array, 0, createMap, setMap); },\n entries: function(array) { return entries(apply(array, 0, createMap, setMap), 0); },\n key: function(d) { keys.push(d); return nest; },\n sortKeys: function(order) { sortKeys[keys.length - 1] = order; return nest; },\n sortValues: function(order) { sortValues = order; return nest; },\n rollup: function(f) { rollup = f; return nest; }\n };\n}\n\nfunction createObject() {\n return {};\n}\n\nfunction setObject(object, key, value) {\n object[key] = value;\n}\n\nfunction createMap() {\n return map();\n}\n\nfunction setMap(map, key, value) {\n map.set(key, value);\n}\n","import {default as map, prefix} from \"./map\";\n\nfunction Set() {}\n\nvar proto = map.prototype;\n\nSet.prototype = set.prototype = {\n constructor: Set,\n has: proto.has,\n add: function(value) {\n value += \"\";\n this[prefix + value] = value;\n return this;\n },\n remove: proto.remove,\n clear: proto.clear,\n values: proto.keys,\n size: proto.size,\n empty: proto.empty,\n each: proto.each\n};\n\nfunction set(object, f) {\n var set = new Set;\n\n // Copy constructor.\n if (object instanceof Set) object.each(function(value) { set.add(value); });\n\n // Otherwise, assume it’s an array.\n else if (object) {\n var i = -1, n = object.length;\n if (f == null) while (++i < n) set.add(object[i]);\n else while (++i < n) set.add(f(object[i], i, object));\n }\n\n return set;\n}\n\nexport default set;\n","// Computes the decimal coefficient and exponent of the specified number x with\n// significant digits p, where x is positive and p is in [1, 21] or undefined.\n// For example, formatDecimal(1.23) returns [\"123\", 0].\nexport default function(x, p) {\n if ((i = (x = p ? x.toExponential(p - 1) : x.toExponential()).indexOf(\"e\")) < 0) return null; // NaN, ±Infinity\n var i, coefficient = x.slice(0, i);\n\n // The string returned by toExponential either has the form \\d\\.\\d+e[-+]\\d+\n // (e.g., 1.2e+3) or the form \\de[-+]\\d+ (e.g., 1e+3).\n return [\n coefficient.length > 1 ? coefficient[0] + coefficient.slice(2) : coefficient,\n +x.slice(i + 1)\n ];\n}\n","import formatDecimal from \"./formatDecimal.js\";\n\nexport default function(x) {\n return x = formatDecimal(Math.abs(x)), x ? x[1] : NaN;\n}\n","// [[fill]align][sign][symbol][0][width][,][.precision][~][type]\nvar re = /^(?:(.)?([<>=^]))?([+\\-( ])?([$#])?(0)?(\\d+)?(,)?(\\.\\d+)?(~)?([a-z%])?$/i;\n\nexport default function formatSpecifier(specifier) {\n if (!(match = re.exec(specifier))) throw new Error(\"invalid format: \" + specifier);\n var match;\n return new FormatSpecifier({\n fill: match[1],\n align: match[2],\n sign: match[3],\n symbol: match[4],\n zero: match[5],\n width: match[6],\n comma: match[7],\n precision: match[8] && match[8].slice(1),\n trim: match[9],\n type: match[10]\n });\n}\n\nformatSpecifier.prototype = FormatSpecifier.prototype; // instanceof\n\nexport function FormatSpecifier(specifier) {\n this.fill = specifier.fill === undefined ? \" \" : specifier.fill + \"\";\n this.align = specifier.align === undefined ? \">\" : specifier.align + \"\";\n this.sign = specifier.sign === undefined ? \"-\" : specifier.sign + \"\";\n this.symbol = specifier.symbol === undefined ? \"\" : specifier.symbol + \"\";\n this.zero = !!specifier.zero;\n this.width = specifier.width === undefined ? undefined : +specifier.width;\n this.comma = !!specifier.comma;\n this.precision = specifier.precision === undefined ? undefined : +specifier.precision;\n this.trim = !!specifier.trim;\n this.type = specifier.type === undefined ? \"\" : specifier.type + \"\";\n}\n\nFormatSpecifier.prototype.toString = function() {\n return this.fill\n + this.align\n + this.sign\n + this.symbol\n + (this.zero ? \"0\" : \"\")\n + (this.width === undefined ? \"\" : Math.max(1, this.width | 0))\n + (this.comma ? \",\" : \"\")\n + (this.precision === undefined ? \"\" : \".\" + Math.max(0, this.precision | 0))\n + (this.trim ? \"~\" : \"\")\n + this.type;\n};\n","// Trims insignificant zeros, e.g., replaces 1.2000k with 1.2k.\nexport default function(s) {\n out: for (var n = s.length, i = 1, i0 = -1, i1; i < n; ++i) {\n switch (s[i]) {\n case \".\": i0 = i1 = i; break;\n case \"0\": if (i0 === 0) i0 = i; i1 = i; break;\n default: if (!+s[i]) break out; if (i0 > 0) i0 = 0; break;\n }\n }\n return i0 > 0 ? s.slice(0, i0) + s.slice(i1 + 1) : s;\n}\n","import formatDecimal from \"./formatDecimal.js\";\n\nexport var prefixExponent;\n\nexport default function(x, p) {\n var d = formatDecimal(x, p);\n if (!d) return x + \"\";\n var coefficient = d[0],\n exponent = d[1],\n i = exponent - (prefixExponent = Math.max(-8, Math.min(8, Math.floor(exponent / 3))) * 3) + 1,\n n = coefficient.length;\n return i === n ? coefficient\n : i > n ? coefficient + new Array(i - n + 1).join(\"0\")\n : i > 0 ? coefficient.slice(0, i) + \".\" + coefficient.slice(i)\n : \"0.\" + new Array(1 - i).join(\"0\") + formatDecimal(x, Math.max(0, p + i - 1))[0]; // less than 1y!\n}\n","import formatLocale from \"./locale.js\";\n\nvar locale;\nexport var format;\nexport var formatPrefix;\n\ndefaultLocale({\n decimal: \".\",\n thousands: \",\",\n grouping: [3],\n currency: [\"$\", \"\"],\n minus: \"-\"\n});\n\nexport default function defaultLocale(definition) {\n locale = formatLocale(definition);\n format = locale.format;\n formatPrefix = locale.formatPrefix;\n return locale;\n}\n","import formatDecimal from \"./formatDecimal.js\";\n\nexport default function(x, p) {\n var d = formatDecimal(x, p);\n if (!d) return x + \"\";\n var coefficient = d[0],\n exponent = d[1];\n return exponent < 0 ? \"0.\" + new Array(-exponent).join(\"0\") + coefficient\n : coefficient.length > exponent + 1 ? coefficient.slice(0, exponent + 1) + \".\" + coefficient.slice(exponent + 1)\n : coefficient + new Array(exponent - coefficient.length + 2).join(\"0\");\n}\n","import formatPrefixAuto from \"./formatPrefixAuto.js\";\nimport formatRounded from \"./formatRounded.js\";\n\nexport default {\n \"%\": function(x, p) { return (x * 100).toFixed(p); },\n \"b\": function(x) { return Math.round(x).toString(2); },\n \"c\": function(x) { return x + \"\"; },\n \"d\": function(x) { return Math.round(x).toString(10); },\n \"e\": function(x, p) { return x.toExponential(p); },\n \"f\": function(x, p) { return x.toFixed(p); },\n \"g\": function(x, p) { return x.toPrecision(p); },\n \"o\": function(x) { return Math.round(x).toString(8); },\n \"p\": function(x, p) { return formatRounded(x * 100, p); },\n \"r\": formatRounded,\n \"s\": formatPrefixAuto,\n \"X\": function(x) { return Math.round(x).toString(16).toUpperCase(); },\n \"x\": function(x) { return Math.round(x).toString(16); }\n};\n","export default function(x) {\n return x;\n}\n","import exponent from \"./exponent.js\";\nimport formatGroup from \"./formatGroup.js\";\nimport formatNumerals from \"./formatNumerals.js\";\nimport formatSpecifier from \"./formatSpecifier.js\";\nimport formatTrim from \"./formatTrim.js\";\nimport formatTypes from \"./formatTypes.js\";\nimport {prefixExponent} from \"./formatPrefixAuto.js\";\nimport identity from \"./identity.js\";\n\nvar map = Array.prototype.map,\n prefixes = [\"y\",\"z\",\"a\",\"f\",\"p\",\"n\",\"µ\",\"m\",\"\",\"k\",\"M\",\"G\",\"T\",\"P\",\"E\",\"Z\",\"Y\"];\n\nexport default function(locale) {\n var group = locale.grouping === undefined || locale.thousands === undefined ? identity : formatGroup(map.call(locale.grouping, Number), locale.thousands + \"\"),\n currencyPrefix = locale.currency === undefined ? \"\" : locale.currency[0] + \"\",\n currencySuffix = locale.currency === undefined ? \"\" : locale.currency[1] + \"\",\n decimal = locale.decimal === undefined ? \".\" : locale.decimal + \"\",\n numerals = locale.numerals === undefined ? identity : formatNumerals(map.call(locale.numerals, String)),\n percent = locale.percent === undefined ? \"%\" : locale.percent + \"\",\n minus = locale.minus === undefined ? \"-\" : locale.minus + \"\",\n nan = locale.nan === undefined ? \"NaN\" : locale.nan + \"\";\n\n function newFormat(specifier) {\n specifier = formatSpecifier(specifier);\n\n var fill = specifier.fill,\n align = specifier.align,\n sign = specifier.sign,\n symbol = specifier.symbol,\n zero = specifier.zero,\n width = specifier.width,\n comma = specifier.comma,\n precision = specifier.precision,\n trim = specifier.trim,\n type = specifier.type;\n\n // The \"n\" type is an alias for \",g\".\n if (type === \"n\") comma = true, type = \"g\";\n\n // The \"\" type, and any invalid type, is an alias for \".12~g\".\n else if (!formatTypes[type]) precision === undefined && (precision = 12), trim = true, type = \"g\";\n\n // If zero fill is specified, padding goes after sign and before digits.\n if (zero || (fill === \"0\" && align === \"=\")) zero = true, fill = \"0\", align = \"=\";\n\n // Compute the prefix and suffix.\n // For SI-prefix, the suffix is lazily computed.\n var prefix = symbol === \"$\" ? currencyPrefix : symbol === \"#\" && /[boxX]/.test(type) ? \"0\" + type.toLowerCase() : \"\",\n suffix = symbol === \"$\" ? currencySuffix : /[%p]/.test(type) ? percent : \"\";\n\n // What format function should we use?\n // Is this an integer type?\n // Can this type generate exponential notation?\n var formatType = formatTypes[type],\n maybeSuffix = /[defgprs%]/.test(type);\n\n // Set the default precision if not specified,\n // or clamp the specified precision to the supported range.\n // For significant precision, it must be in [1, 21].\n // For fixed precision, it must be in [0, 20].\n precision = precision === undefined ? 6\n : /[gprs]/.test(type) ? Math.max(1, Math.min(21, precision))\n : Math.max(0, Math.min(20, precision));\n\n function format(value) {\n var valuePrefix = prefix,\n valueSuffix = suffix,\n i, n, c;\n\n if (type === \"c\") {\n valueSuffix = formatType(value) + valueSuffix;\n value = \"\";\n } else {\n value = +value;\n\n // Perform the initial formatting.\n var valueNegative = value < 0;\n value = isNaN(value) ? nan : formatType(Math.abs(value), precision);\n\n // Trim insignificant zeros.\n if (trim) value = formatTrim(value);\n\n // If a negative value rounds to zero during formatting, treat as positive.\n if (valueNegative && +value === 0) valueNegative = false;\n\n // Compute the prefix and suffix.\n valuePrefix = (valueNegative ? (sign === \"(\" ? sign : minus) : sign === \"-\" || sign === \"(\" ? \"\" : sign) + valuePrefix;\n\n valueSuffix = (type === \"s\" ? prefixes[8 + prefixExponent / 3] : \"\") + valueSuffix + (valueNegative && sign === \"(\" ? \")\" : \"\");\n\n // Break the formatted value into the integer “value” part that can be\n // grouped, and fractional or exponential “suffix” part that is not.\n if (maybeSuffix) {\n i = -1, n = value.length;\n while (++i < n) {\n if (c = value.charCodeAt(i), 48 > c || c > 57) {\n valueSuffix = (c === 46 ? decimal + value.slice(i + 1) : value.slice(i)) + valueSuffix;\n value = value.slice(0, i);\n break;\n }\n }\n }\n }\n\n // If the fill character is not \"0\", grouping is applied before padding.\n if (comma && !zero) value = group(value, Infinity);\n\n // Compute the padding.\n var length = valuePrefix.length + value.length + valueSuffix.length,\n padding = length < width ? new Array(width - length + 1).join(fill) : \"\";\n\n // If the fill character is \"0\", grouping is applied after padding.\n if (comma && zero) value = group(padding + value, padding.length ? width - valueSuffix.length : Infinity), padding = \"\";\n\n // Reconstruct the final output based on the desired alignment.\n switch (align) {\n case \"<\": value = valuePrefix + value + valueSuffix + padding; break;\n case \"=\": value = valuePrefix + padding + value + valueSuffix; break;\n case \"^\": value = padding.slice(0, length = padding.length >> 1) + valuePrefix + value + valueSuffix + padding.slice(length); break;\n default: value = padding + valuePrefix + value + valueSuffix; break;\n }\n\n return numerals(value);\n }\n\n format.toString = function() {\n return specifier + \"\";\n };\n\n return format;\n }\n\n function formatPrefix(specifier, value) {\n var f = newFormat((specifier = formatSpecifier(specifier), specifier.type = \"f\", specifier)),\n e = Math.max(-8, Math.min(8, Math.floor(exponent(value) / 3))) * 3,\n k = Math.pow(10, -e),\n prefix = prefixes[8 + e / 3];\n return function(value) {\n return f(k * value) + prefix;\n };\n }\n\n return {\n format: newFormat,\n formatPrefix: formatPrefix\n };\n}\n","export default function(grouping, thousands) {\n return function(value, width) {\n var i = value.length,\n t = [],\n j = 0,\n g = grouping[0],\n length = 0;\n\n while (i > 0 && g > 0) {\n if (length + g + 1 > width) g = Math.max(1, width - length);\n t.push(value.substring(i -= g, i + g));\n if ((length += g + 1) > width) break;\n g = grouping[j = (j + 1) % grouping.length];\n }\n\n return t.reverse().join(thousands);\n };\n}\n","export default function(numerals) {\n return function(value) {\n return value.replace(/[0-9]/g, function(i) {\n return numerals[+i];\n });\n };\n}\n","var pi = Math.PI,\n tau = 2 * pi,\n epsilon = 1e-6,\n tauEpsilon = tau - epsilon;\n\nfunction Path() {\n this._x0 = this._y0 = // start of current subpath\n this._x1 = this._y1 = null; // end of current subpath\n this._ = \"\";\n}\n\nfunction path() {\n return new Path;\n}\n\nPath.prototype = path.prototype = {\n constructor: Path,\n moveTo: function(x, y) {\n this._ += \"M\" + (this._x0 = this._x1 = +x) + \",\" + (this._y0 = this._y1 = +y);\n },\n closePath: function() {\n if (this._x1 !== null) {\n this._x1 = this._x0, this._y1 = this._y0;\n this._ += \"Z\";\n }\n },\n lineTo: function(x, y) {\n this._ += \"L\" + (this._x1 = +x) + \",\" + (this._y1 = +y);\n },\n quadraticCurveTo: function(x1, y1, x, y) {\n this._ += \"Q\" + (+x1) + \",\" + (+y1) + \",\" + (this._x1 = +x) + \",\" + (this._y1 = +y);\n },\n bezierCurveTo: function(x1, y1, x2, y2, x, y) {\n this._ += \"C\" + (+x1) + \",\" + (+y1) + \",\" + (+x2) + \",\" + (+y2) + \",\" + (this._x1 = +x) + \",\" + (this._y1 = +y);\n },\n arcTo: function(x1, y1, x2, y2, r) {\n x1 = +x1, y1 = +y1, x2 = +x2, y2 = +y2, r = +r;\n var x0 = this._x1,\n y0 = this._y1,\n x21 = x2 - x1,\n y21 = y2 - y1,\n x01 = x0 - x1,\n y01 = y0 - y1,\n l01_2 = x01 * x01 + y01 * y01;\n\n // Is the radius negative? Error.\n if (r < 0) throw new Error(\"negative radius: \" + r);\n\n // Is this path empty? Move to (x1,y1).\n if (this._x1 === null) {\n this._ += \"M\" + (this._x1 = x1) + \",\" + (this._y1 = y1);\n }\n\n // Or, is (x1,y1) coincident with (x0,y0)? Do nothing.\n else if (!(l01_2 > epsilon));\n\n // Or, are (x0,y0), (x1,y1) and (x2,y2) collinear?\n // Equivalently, is (x1,y1) coincident with (x2,y2)?\n // Or, is the radius zero? Line to (x1,y1).\n else if (!(Math.abs(y01 * x21 - y21 * x01) > epsilon) || !r) {\n this._ += \"L\" + (this._x1 = x1) + \",\" + (this._y1 = y1);\n }\n\n // Otherwise, draw an arc!\n else {\n var x20 = x2 - x0,\n y20 = y2 - y0,\n l21_2 = x21 * x21 + y21 * y21,\n l20_2 = x20 * x20 + y20 * y20,\n l21 = Math.sqrt(l21_2),\n l01 = Math.sqrt(l01_2),\n l = r * Math.tan((pi - Math.acos((l21_2 + l01_2 - l20_2) / (2 * l21 * l01))) / 2),\n t01 = l / l01,\n t21 = l / l21;\n\n // If the start tangent is not coincident with (x0,y0), line to.\n if (Math.abs(t01 - 1) > epsilon) {\n this._ += \"L\" + (x1 + t01 * x01) + \",\" + (y1 + t01 * y01);\n }\n\n this._ += \"A\" + r + \",\" + r + \",0,0,\" + (+(y01 * x20 > x01 * y20)) + \",\" + (this._x1 = x1 + t21 * x21) + \",\" + (this._y1 = y1 + t21 * y21);\n }\n },\n arc: function(x, y, r, a0, a1, ccw) {\n x = +x, y = +y, r = +r, ccw = !!ccw;\n var dx = r * Math.cos(a0),\n dy = r * Math.sin(a0),\n x0 = x + dx,\n y0 = y + dy,\n cw = 1 ^ ccw,\n da = ccw ? a0 - a1 : a1 - a0;\n\n // Is the radius negative? Error.\n if (r < 0) throw new Error(\"negative radius: \" + r);\n\n // Is this path empty? Move to (x0,y0).\n if (this._x1 === null) {\n this._ += \"M\" + x0 + \",\" + y0;\n }\n\n // Or, is (x0,y0) not coincident with the previous point? Line to (x0,y0).\n else if (Math.abs(this._x1 - x0) > epsilon || Math.abs(this._y1 - y0) > epsilon) {\n this._ += \"L\" + x0 + \",\" + y0;\n }\n\n // Is this arc empty? We’re done.\n if (!r) return;\n\n // Does the angle go the wrong way? Flip the direction.\n if (da < 0) da = da % tau + tau;\n\n // Is this a complete circle? Draw two arcs to complete the circle.\n if (da > tauEpsilon) {\n this._ += \"A\" + r + \",\" + r + \",0,1,\" + cw + \",\" + (x - dx) + \",\" + (y - dy) + \"A\" + r + \",\" + r + \",0,1,\" + cw + \",\" + (this._x1 = x0) + \",\" + (this._y1 = y0);\n }\n\n // Is this arc non-empty? Draw an arc!\n else if (da > epsilon) {\n this._ += \"A\" + r + \",\" + r + \",0,\" + (+(da >= pi)) + \",\" + cw + \",\" + (this._x1 = x + r * Math.cos(a1)) + \",\" + (this._y1 = y + r * Math.sin(a1));\n }\n },\n rect: function(x, y, w, h) {\n this._ += \"M\" + (this._x0 = this._x1 = +x) + \",\" + (this._y0 = this._y1 = +y) + \"h\" + (+w) + \"v\" + (+h) + \"h\" + (-w) + \"Z\";\n },\n toString: function() {\n return this._;\n }\n};\n\nexport default path;\n","export function initRange(domain, range) {\n switch (arguments.length) {\n case 0: break;\n case 1: this.range(domain); break;\n default: this.range(range).domain(domain); break;\n }\n return this;\n}\n\nexport function initInterpolator(domain, interpolator) {\n switch (arguments.length) {\n case 0: break;\n case 1: {\n if (typeof domain === \"function\") this.interpolator(domain);\n else this.range(domain);\n break;\n }\n default: {\n this.domain(domain);\n if (typeof interpolator === \"function\") this.interpolator(interpolator);\n else this.range(interpolator);\n break;\n }\n }\n return this;\n}\n","import {initRange} from \"./init.js\";\n\nexport const implicit = Symbol(\"implicit\");\n\nexport default function ordinal() {\n var index = new Map(),\n domain = [],\n range = [],\n unknown = implicit;\n\n function scale(d) {\n var key = d + \"\", i = index.get(key);\n if (!i) {\n if (unknown !== implicit) return unknown;\n index.set(key, i = domain.push(d));\n }\n return range[(i - 1) % range.length];\n }\n\n scale.domain = function(_) {\n if (!arguments.length) return domain.slice();\n domain = [], index = new Map();\n for (const value of _) {\n const key = value + \"\";\n if (index.has(key)) continue;\n index.set(key, domain.push(value));\n }\n return scale;\n };\n\n scale.range = function(_) {\n return arguments.length ? (range = Array.from(_), scale) : range.slice();\n };\n\n scale.unknown = function(_) {\n return arguments.length ? (unknown = _, scale) : unknown;\n };\n\n scale.copy = function() {\n return ordinal(domain, range).unknown(unknown);\n };\n\n initRange.apply(scale, arguments);\n\n return scale;\n}\n","var e10 = Math.sqrt(50),\n e5 = Math.sqrt(10),\n e2 = Math.sqrt(2);\n\nexport default function(start, stop, count) {\n var reverse,\n i = -1,\n n,\n ticks,\n step;\n\n stop = +stop, start = +start, count = +count;\n if (start === stop && count > 0) return [start];\n if (reverse = stop < start) n = start, start = stop, stop = n;\n if ((step = tickIncrement(start, stop, count)) === 0 || !isFinite(step)) return [];\n\n if (step > 0) {\n start = Math.ceil(start / step);\n stop = Math.floor(stop / step);\n ticks = new Array(n = Math.ceil(stop - start + 1));\n while (++i < n) ticks[i] = (start + i) * step;\n } else {\n start = Math.floor(start * step);\n stop = Math.ceil(stop * step);\n ticks = new Array(n = Math.ceil(start - stop + 1));\n while (++i < n) ticks[i] = (start - i) / step;\n }\n\n if (reverse) ticks.reverse();\n\n return ticks;\n}\n\nexport function tickIncrement(start, stop, count) {\n var step = (stop - start) / Math.max(0, count),\n power = Math.floor(Math.log(step) / Math.LN10),\n error = step / Math.pow(10, power);\n return power >= 0\n ? (error >= e10 ? 10 : error >= e5 ? 5 : error >= e2 ? 2 : 1) * Math.pow(10, power)\n : -Math.pow(10, -power) / (error >= e10 ? 10 : error >= e5 ? 5 : error >= e2 ? 2 : 1);\n}\n\nexport function tickStep(start, stop, count) {\n var step0 = Math.abs(stop - start) / Math.max(0, count),\n step1 = Math.pow(10, Math.floor(Math.log(step0) / Math.LN10)),\n error = step0 / step1;\n if (error >= e10) step1 *= 10;\n else if (error >= e5) step1 *= 5;\n else if (error >= e2) step1 *= 2;\n return stop < start ? -step1 : step1;\n}\n","import ascending from \"./ascending.js\";\n\nexport default function(compare) {\n if (compare.length === 1) compare = ascendingComparator(compare);\n return {\n left: function(a, x, lo, hi) {\n if (lo == null) lo = 0;\n if (hi == null) hi = a.length;\n while (lo < hi) {\n var mid = lo + hi >>> 1;\n if (compare(a[mid], x) < 0) lo = mid + 1;\n else hi = mid;\n }\n return lo;\n },\n right: function(a, x, lo, hi) {\n if (lo == null) lo = 0;\n if (hi == null) hi = a.length;\n while (lo < hi) {\n var mid = lo + hi >>> 1;\n if (compare(a[mid], x) > 0) hi = mid;\n else lo = mid + 1;\n }\n return lo;\n }\n };\n}\n\nfunction ascendingComparator(f) {\n return function(d, x) {\n return ascending(f(d), x);\n };\n}\n","import ascending from \"./ascending.js\";\nimport bisector from \"./bisector.js\";\n\nvar ascendingBisect = bisector(ascending);\nexport var bisectRight = ascendingBisect.right;\nexport var bisectLeft = ascendingBisect.left;\nexport default bisectRight;\n","export default function(constructor, factory, prototype) {\n constructor.prototype = factory.prototype = prototype;\n prototype.constructor = constructor;\n}\n\nexport function extend(parent, definition) {\n var prototype = Object.create(parent.prototype);\n for (var key in definition) prototype[key] = definition[key];\n return prototype;\n}\n","import define, {extend} from \"./define.js\";\n\nexport function Color() {}\n\nexport var darker = 0.7;\nexport var brighter = 1 / darker;\n\nvar reI = \"\\\\s*([+-]?\\\\d+)\\\\s*\",\n reN = \"\\\\s*([+-]?\\\\d*\\\\.?\\\\d+(?:[eE][+-]?\\\\d+)?)\\\\s*\",\n reP = \"\\\\s*([+-]?\\\\d*\\\\.?\\\\d+(?:[eE][+-]?\\\\d+)?)%\\\\s*\",\n reHex = /^#([0-9a-f]{3,8})$/,\n reRgbInteger = new RegExp(\"^rgb\\\\(\" + [reI, reI, reI] + \"\\\\)$\"),\n reRgbPercent = new RegExp(\"^rgb\\\\(\" + [reP, reP, reP] + \"\\\\)$\"),\n reRgbaInteger = new RegExp(\"^rgba\\\\(\" + [reI, reI, reI, reN] + \"\\\\)$\"),\n reRgbaPercent = new RegExp(\"^rgba\\\\(\" + [reP, reP, reP, reN] + \"\\\\)$\"),\n reHslPercent = new RegExp(\"^hsl\\\\(\" + [reN, reP, reP] + \"\\\\)$\"),\n reHslaPercent = new RegExp(\"^hsla\\\\(\" + [reN, reP, reP, reN] + \"\\\\)$\");\n\nvar named = {\n aliceblue: 0xf0f8ff,\n antiquewhite: 0xfaebd7,\n aqua: 0x00ffff,\n aquamarine: 0x7fffd4,\n azure: 0xf0ffff,\n beige: 0xf5f5dc,\n bisque: 0xffe4c4,\n black: 0x000000,\n blanchedalmond: 0xffebcd,\n blue: 0x0000ff,\n blueviolet: 0x8a2be2,\n brown: 0xa52a2a,\n burlywood: 0xdeb887,\n cadetblue: 0x5f9ea0,\n chartreuse: 0x7fff00,\n chocolate: 0xd2691e,\n coral: 0xff7f50,\n cornflowerblue: 0x6495ed,\n cornsilk: 0xfff8dc,\n crimson: 0xdc143c,\n cyan: 0x00ffff,\n darkblue: 0x00008b,\n darkcyan: 0x008b8b,\n darkgoldenrod: 0xb8860b,\n darkgray: 0xa9a9a9,\n darkgreen: 0x006400,\n darkgrey: 0xa9a9a9,\n darkkhaki: 0xbdb76b,\n darkmagenta: 0x8b008b,\n darkolivegreen: 0x556b2f,\n darkorange: 0xff8c00,\n darkorchid: 0x9932cc,\n darkred: 0x8b0000,\n darksalmon: 0xe9967a,\n darkseagreen: 0x8fbc8f,\n darkslateblue: 0x483d8b,\n darkslategray: 0x2f4f4f,\n darkslategrey: 0x2f4f4f,\n darkturquoise: 0x00ced1,\n darkviolet: 0x9400d3,\n deeppink: 0xff1493,\n deepskyblue: 0x00bfff,\n dimgray: 0x696969,\n dimgrey: 0x696969,\n dodgerblue: 0x1e90ff,\n firebrick: 0xb22222,\n floralwhite: 0xfffaf0,\n forestgreen: 0x228b22,\n fuchsia: 0xff00ff,\n gainsboro: 0xdcdcdc,\n ghostwhite: 0xf8f8ff,\n gold: 0xffd700,\n goldenrod: 0xdaa520,\n gray: 0x808080,\n green: 0x008000,\n greenyellow: 0xadff2f,\n grey: 0x808080,\n honeydew: 0xf0fff0,\n hotpink: 0xff69b4,\n indianred: 0xcd5c5c,\n indigo: 0x4b0082,\n ivory: 0xfffff0,\n khaki: 0xf0e68c,\n lavender: 0xe6e6fa,\n lavenderblush: 0xfff0f5,\n lawngreen: 0x7cfc00,\n lemonchiffon: 0xfffacd,\n lightblue: 0xadd8e6,\n lightcoral: 0xf08080,\n lightcyan: 0xe0ffff,\n lightgoldenrodyellow: 0xfafad2,\n lightgray: 0xd3d3d3,\n lightgreen: 0x90ee90,\n lightgrey: 0xd3d3d3,\n lightpink: 0xffb6c1,\n lightsalmon: 0xffa07a,\n lightseagreen: 0x20b2aa,\n lightskyblue: 0x87cefa,\n lightslategray: 0x778899,\n lightslategrey: 0x778899,\n lightsteelblue: 0xb0c4de,\n lightyellow: 0xffffe0,\n lime: 0x00ff00,\n limegreen: 0x32cd32,\n linen: 0xfaf0e6,\n magenta: 0xff00ff,\n maroon: 0x800000,\n mediumaquamarine: 0x66cdaa,\n mediumblue: 0x0000cd,\n mediumorchid: 0xba55d3,\n mediumpurple: 0x9370db,\n mediumseagreen: 0x3cb371,\n mediumslateblue: 0x7b68ee,\n mediumspringgreen: 0x00fa9a,\n mediumturquoise: 0x48d1cc,\n mediumvioletred: 0xc71585,\n midnightblue: 0x191970,\n mintcream: 0xf5fffa,\n mistyrose: 0xffe4e1,\n moccasin: 0xffe4b5,\n navajowhite: 0xffdead,\n navy: 0x000080,\n oldlace: 0xfdf5e6,\n olive: 0x808000,\n olivedrab: 0x6b8e23,\n orange: 0xffa500,\n orangered: 0xff4500,\n orchid: 0xda70d6,\n palegoldenrod: 0xeee8aa,\n palegreen: 0x98fb98,\n paleturquoise: 0xafeeee,\n palevioletred: 0xdb7093,\n papayawhip: 0xffefd5,\n peachpuff: 0xffdab9,\n peru: 0xcd853f,\n pink: 0xffc0cb,\n plum: 0xdda0dd,\n powderblue: 0xb0e0e6,\n purple: 0x800080,\n rebeccapurple: 0x663399,\n red: 0xff0000,\n rosybrown: 0xbc8f8f,\n royalblue: 0x4169e1,\n saddlebrown: 0x8b4513,\n salmon: 0xfa8072,\n sandybrown: 0xf4a460,\n seagreen: 0x2e8b57,\n seashell: 0xfff5ee,\n sienna: 0xa0522d,\n silver: 0xc0c0c0,\n skyblue: 0x87ceeb,\n slateblue: 0x6a5acd,\n slategray: 0x708090,\n slategrey: 0x708090,\n snow: 0xfffafa,\n springgreen: 0x00ff7f,\n steelblue: 0x4682b4,\n tan: 0xd2b48c,\n teal: 0x008080,\n thistle: 0xd8bfd8,\n tomato: 0xff6347,\n turquoise: 0x40e0d0,\n violet: 0xee82ee,\n wheat: 0xf5deb3,\n white: 0xffffff,\n whitesmoke: 0xf5f5f5,\n yellow: 0xffff00,\n yellowgreen: 0x9acd32\n};\n\ndefine(Color, color, {\n copy: function(channels) {\n return Object.assign(new this.constructor, this, channels);\n },\n displayable: function() {\n return this.rgb().displayable();\n },\n hex: color_formatHex, // Deprecated! Use color.formatHex.\n formatHex: color_formatHex,\n formatHsl: color_formatHsl,\n formatRgb: color_formatRgb,\n toString: color_formatRgb\n});\n\nfunction color_formatHex() {\n return this.rgb().formatHex();\n}\n\nfunction color_formatHsl() {\n return hslConvert(this).formatHsl();\n}\n\nfunction color_formatRgb() {\n return this.rgb().formatRgb();\n}\n\nexport default function color(format) {\n var m, l;\n format = (format + \"\").trim().toLowerCase();\n return (m = reHex.exec(format)) ? (l = m[1].length, m = parseInt(m[1], 16), l === 6 ? rgbn(m) // #ff0000\n : l === 3 ? new Rgb((m >> 8 & 0xf) | (m >> 4 & 0xf0), (m >> 4 & 0xf) | (m & 0xf0), ((m & 0xf) << 4) | (m & 0xf), 1) // #f00\n : l === 8 ? new Rgb(m >> 24 & 0xff, m >> 16 & 0xff, m >> 8 & 0xff, (m & 0xff) / 0xff) // #ff000000\n : l === 4 ? new Rgb((m >> 12 & 0xf) | (m >> 8 & 0xf0), (m >> 8 & 0xf) | (m >> 4 & 0xf0), (m >> 4 & 0xf) | (m & 0xf0), (((m & 0xf) << 4) | (m & 0xf)) / 0xff) // #f000\n : null) // invalid hex\n : (m = reRgbInteger.exec(format)) ? new Rgb(m[1], m[2], m[3], 1) // rgb(255, 0, 0)\n : (m = reRgbPercent.exec(format)) ? new Rgb(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, 1) // rgb(100%, 0%, 0%)\n : (m = reRgbaInteger.exec(format)) ? rgba(m[1], m[2], m[3], m[4]) // rgba(255, 0, 0, 1)\n : (m = reRgbaPercent.exec(format)) ? rgba(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, m[4]) // rgb(100%, 0%, 0%, 1)\n : (m = reHslPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, 1) // hsl(120, 50%, 50%)\n : (m = reHslaPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, m[4]) // hsla(120, 50%, 50%, 1)\n : named.hasOwnProperty(format) ? rgbn(named[format]) // eslint-disable-line no-prototype-builtins\n : format === \"transparent\" ? new Rgb(NaN, NaN, NaN, 0)\n : null;\n}\n\nfunction rgbn(n) {\n return new Rgb(n >> 16 & 0xff, n >> 8 & 0xff, n & 0xff, 1);\n}\n\nfunction rgba(r, g, b, a) {\n if (a <= 0) r = g = b = NaN;\n return new Rgb(r, g, b, a);\n}\n\nexport function rgbConvert(o) {\n if (!(o instanceof Color)) o = color(o);\n if (!o) return new Rgb;\n o = o.rgb();\n return new Rgb(o.r, o.g, o.b, o.opacity);\n}\n\nexport function rgb(r, g, b, opacity) {\n return arguments.length === 1 ? rgbConvert(r) : new Rgb(r, g, b, opacity == null ? 1 : opacity);\n}\n\nexport function Rgb(r, g, b, opacity) {\n this.r = +r;\n this.g = +g;\n this.b = +b;\n this.opacity = +opacity;\n}\n\ndefine(Rgb, rgb, extend(Color, {\n brighter: function(k) {\n k = k == null ? brighter : Math.pow(brighter, k);\n return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity);\n },\n darker: function(k) {\n k = k == null ? darker : Math.pow(darker, k);\n return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity);\n },\n rgb: function() {\n return this;\n },\n displayable: function() {\n return (-0.5 <= this.r && this.r < 255.5)\n && (-0.5 <= this.g && this.g < 255.5)\n && (-0.5 <= this.b && this.b < 255.5)\n && (0 <= this.opacity && this.opacity <= 1);\n },\n hex: rgb_formatHex, // Deprecated! Use color.formatHex.\n formatHex: rgb_formatHex,\n formatRgb: rgb_formatRgb,\n toString: rgb_formatRgb\n}));\n\nfunction rgb_formatHex() {\n return \"#\" + hex(this.r) + hex(this.g) + hex(this.b);\n}\n\nfunction rgb_formatRgb() {\n var a = this.opacity; a = isNaN(a) ? 1 : Math.max(0, Math.min(1, a));\n return (a === 1 ? \"rgb(\" : \"rgba(\")\n + Math.max(0, Math.min(255, Math.round(this.r) || 0)) + \", \"\n + Math.max(0, Math.min(255, Math.round(this.g) || 0)) + \", \"\n + Math.max(0, Math.min(255, Math.round(this.b) || 0))\n + (a === 1 ? \")\" : \", \" + a + \")\");\n}\n\nfunction hex(value) {\n value = Math.max(0, Math.min(255, Math.round(value) || 0));\n return (value < 16 ? \"0\" : \"\") + value.toString(16);\n}\n\nfunction hsla(h, s, l, a) {\n if (a <= 0) h = s = l = NaN;\n else if (l <= 0 || l >= 1) h = s = NaN;\n else if (s <= 0) h = NaN;\n return new Hsl(h, s, l, a);\n}\n\nexport function hslConvert(o) {\n if (o instanceof Hsl) return new Hsl(o.h, o.s, o.l, o.opacity);\n if (!(o instanceof Color)) o = color(o);\n if (!o) return new Hsl;\n if (o instanceof Hsl) return o;\n o = o.rgb();\n var r = o.r / 255,\n g = o.g / 255,\n b = o.b / 255,\n min = Math.min(r, g, b),\n max = Math.max(r, g, b),\n h = NaN,\n s = max - min,\n l = (max + min) / 2;\n if (s) {\n if (r === max) h = (g - b) / s + (g < b) * 6;\n else if (g === max) h = (b - r) / s + 2;\n else h = (r - g) / s + 4;\n s /= l < 0.5 ? max + min : 2 - max - min;\n h *= 60;\n } else {\n s = l > 0 && l < 1 ? 0 : h;\n }\n return new Hsl(h, s, l, o.opacity);\n}\n\nexport function hsl(h, s, l, opacity) {\n return arguments.length === 1 ? hslConvert(h) : new Hsl(h, s, l, opacity == null ? 1 : opacity);\n}\n\nfunction Hsl(h, s, l, opacity) {\n this.h = +h;\n this.s = +s;\n this.l = +l;\n this.opacity = +opacity;\n}\n\ndefine(Hsl, hsl, extend(Color, {\n brighter: function(k) {\n k = k == null ? brighter : Math.pow(brighter, k);\n return new Hsl(this.h, this.s, this.l * k, this.opacity);\n },\n darker: function(k) {\n k = k == null ? darker : Math.pow(darker, k);\n return new Hsl(this.h, this.s, this.l * k, this.opacity);\n },\n rgb: function() {\n var h = this.h % 360 + (this.h < 0) * 360,\n s = isNaN(h) || isNaN(this.s) ? 0 : this.s,\n l = this.l,\n m2 = l + (l < 0.5 ? l : 1 - l) * s,\n m1 = 2 * l - m2;\n return new Rgb(\n hsl2rgb(h >= 240 ? h - 240 : h + 120, m1, m2),\n hsl2rgb(h, m1, m2),\n hsl2rgb(h < 120 ? h + 240 : h - 120, m1, m2),\n this.opacity\n );\n },\n displayable: function() {\n return (0 <= this.s && this.s <= 1 || isNaN(this.s))\n && (0 <= this.l && this.l <= 1)\n && (0 <= this.opacity && this.opacity <= 1);\n },\n formatHsl: function() {\n var a = this.opacity; a = isNaN(a) ? 1 : Math.max(0, Math.min(1, a));\n return (a === 1 ? \"hsl(\" : \"hsla(\")\n + (this.h || 0) + \", \"\n + (this.s || 0) * 100 + \"%, \"\n + (this.l || 0) * 100 + \"%\"\n + (a === 1 ? \")\" : \", \" + a + \")\");\n }\n}));\n\n/* From FvD 13.37, CSS Color Module Level 3 */\nfunction hsl2rgb(h, m1, m2) {\n return (h < 60 ? m1 + (m2 - m1) * h / 60\n : h < 180 ? m2\n : h < 240 ? m1 + (m2 - m1) * (240 - h) / 60\n : m1) * 255;\n}\n","export function basis(t1, v0, v1, v2, v3) {\n var t2 = t1 * t1, t3 = t2 * t1;\n return ((1 - 3 * t1 + 3 * t2 - t3) * v0\n + (4 - 6 * t2 + 3 * t3) * v1\n + (1 + 3 * t1 + 3 * t2 - 3 * t3) * v2\n + t3 * v3) / 6;\n}\n\nexport default function(values) {\n var n = values.length - 1;\n return function(t) {\n var i = t <= 0 ? (t = 0) : t >= 1 ? (t = 1, n - 1) : Math.floor(t * n),\n v1 = values[i],\n v2 = values[i + 1],\n v0 = i > 0 ? values[i - 1] : 2 * v1 - v2,\n v3 = i < n - 1 ? values[i + 2] : 2 * v2 - v1;\n return basis((t - i / n) * n, v0, v1, v2, v3);\n };\n}\n","export default function(x) {\n return function() {\n return x;\n };\n}\n","import constant from \"./constant.js\";\n\nfunction linear(a, d) {\n return function(t) {\n return a + t * d;\n };\n}\n\nfunction exponential(a, b, y) {\n return a = Math.pow(a, y), b = Math.pow(b, y) - a, y = 1 / y, function(t) {\n return Math.pow(a + t * b, y);\n };\n}\n\nexport function hue(a, b) {\n var d = b - a;\n return d ? linear(a, d > 180 || d < -180 ? d - 360 * Math.round(d / 360) : d) : constant(isNaN(a) ? b : a);\n}\n\nexport function gamma(y) {\n return (y = +y) === 1 ? nogamma : function(a, b) {\n return b - a ? exponential(a, b, y) : constant(isNaN(a) ? b : a);\n };\n}\n\nexport default function nogamma(a, b) {\n var d = b - a;\n return d ? linear(a, d) : constant(isNaN(a) ? b : a);\n}\n","import {rgb as colorRgb} from \"d3-color\";\nimport basis from \"./basis.js\";\nimport basisClosed from \"./basisClosed.js\";\nimport nogamma, {gamma} from \"./color.js\";\n\nexport default (function rgbGamma(y) {\n var color = gamma(y);\n\n function rgb(start, end) {\n var r = color((start = colorRgb(start)).r, (end = colorRgb(end)).r),\n g = color(start.g, end.g),\n b = color(start.b, end.b),\n opacity = nogamma(start.opacity, end.opacity);\n return function(t) {\n start.r = r(t);\n start.g = g(t);\n start.b = b(t);\n start.opacity = opacity(t);\n return start + \"\";\n };\n }\n\n rgb.gamma = rgbGamma;\n\n return rgb;\n})(1);\n\nfunction rgbSpline(spline) {\n return function(colors) {\n var n = colors.length,\n r = new Array(n),\n g = new Array(n),\n b = new Array(n),\n i, color;\n for (i = 0; i < n; ++i) {\n color = colorRgb(colors[i]);\n r[i] = color.r || 0;\n g[i] = color.g || 0;\n b[i] = color.b || 0;\n }\n r = spline(r);\n g = spline(g);\n b = spline(b);\n color.opacity = 1;\n return function(t) {\n color.r = r(t);\n color.g = g(t);\n color.b = b(t);\n return color + \"\";\n };\n };\n}\n\nexport var rgbBasis = rgbSpline(basis);\nexport var rgbBasisClosed = rgbSpline(basisClosed);\n","import {basis} from \"./basis.js\";\n\nexport default function(values) {\n var n = values.length;\n return function(t) {\n var i = Math.floor(((t %= 1) < 0 ? ++t : t) * n),\n v0 = values[(i + n - 1) % n],\n v1 = values[i % n],\n v2 = values[(i + 1) % n],\n v3 = values[(i + 2) % n];\n return basis((t - i / n) * n, v0, v1, v2, v3);\n };\n}\n","export default function(a, b) {\n if (!b) b = [];\n var n = a ? Math.min(b.length, a.length) : 0,\n c = b.slice(),\n i;\n return function(t) {\n for (i = 0; i < n; ++i) c[i] = a[i] * (1 - t) + b[i] * t;\n return c;\n };\n}\n\nexport function isNumberArray(x) {\n return ArrayBuffer.isView(x) && !(x instanceof DataView);\n}\n","import value from \"./value.js\";\nimport numberArray, {isNumberArray} from \"./numberArray.js\";\n\nexport default function(a, b) {\n return (isNumberArray(b) ? numberArray : genericArray)(a, b);\n}\n\nexport function genericArray(a, b) {\n var nb = b ? b.length : 0,\n na = a ? Math.min(nb, a.length) : 0,\n x = new Array(na),\n c = new Array(nb),\n i;\n\n for (i = 0; i < na; ++i) x[i] = value(a[i], b[i]);\n for (; i < nb; ++i) c[i] = b[i];\n\n return function(t) {\n for (i = 0; i < na; ++i) c[i] = x[i](t);\n return c;\n };\n}\n","export default function(a, b) {\n var d = new Date;\n return a = +a, b = +b, function(t) {\n return d.setTime(a * (1 - t) + b * t), d;\n };\n}\n","export default function(a, b) {\n return a = +a, b = +b, function(t) {\n return a * (1 - t) + b * t;\n };\n}\n","import value from \"./value.js\";\n\nexport default function(a, b) {\n var i = {},\n c = {},\n k;\n\n if (a === null || typeof a !== \"object\") a = {};\n if (b === null || typeof b !== \"object\") b = {};\n\n for (k in b) {\n if (k in a) {\n i[k] = value(a[k], b[k]);\n } else {\n c[k] = b[k];\n }\n }\n\n return function(t) {\n for (k in i) c[k] = i[k](t);\n return c;\n };\n}\n","import number from \"./number.js\";\n\nvar reA = /[-+]?(?:\\d+\\.?\\d*|\\.?\\d+)(?:[eE][-+]?\\d+)?/g,\n reB = new RegExp(reA.source, \"g\");\n\nfunction zero(b) {\n return function() {\n return b;\n };\n}\n\nfunction one(b) {\n return function(t) {\n return b(t) + \"\";\n };\n}\n\nexport default function(a, b) {\n var bi = reA.lastIndex = reB.lastIndex = 0, // scan index for next number in b\n am, // current match in a\n bm, // current match in b\n bs, // string preceding current number in b, if any\n i = -1, // index in s\n s = [], // string constants and placeholders\n q = []; // number interpolators\n\n // Coerce inputs to strings.\n a = a + \"\", b = b + \"\";\n\n // Interpolate pairs of numbers in a & b.\n while ((am = reA.exec(a))\n && (bm = reB.exec(b))) {\n if ((bs = bm.index) > bi) { // a string precedes the next number in b\n bs = b.slice(bi, bs);\n if (s[i]) s[i] += bs; // coalesce with previous string\n else s[++i] = bs;\n }\n if ((am = am[0]) === (bm = bm[0])) { // numbers in a & b match\n if (s[i]) s[i] += bm; // coalesce with previous string\n else s[++i] = bm;\n } else { // interpolate non-matching numbers\n s[++i] = null;\n q.push({i: i, x: number(am, bm)});\n }\n bi = reB.lastIndex;\n }\n\n // Add remains of b.\n if (bi < b.length) {\n bs = b.slice(bi);\n if (s[i]) s[i] += bs; // coalesce with previous string\n else s[++i] = bs;\n }\n\n // Special optimization for only a single match.\n // Otherwise, interpolate each of the numbers and rejoin the string.\n return s.length < 2 ? (q[0]\n ? one(q[0].x)\n : zero(b))\n : (b = q.length, function(t) {\n for (var i = 0, o; i < b; ++i) s[(o = q[i]).i] = o.x(t);\n return s.join(\"\");\n });\n}\n","import {color} from \"d3-color\";\nimport rgb from \"./rgb.js\";\nimport {genericArray} from \"./array.js\";\nimport date from \"./date.js\";\nimport number from \"./number.js\";\nimport object from \"./object.js\";\nimport string from \"./string.js\";\nimport constant from \"./constant.js\";\nimport numberArray, {isNumberArray} from \"./numberArray.js\";\n\nexport default function(a, b) {\n var t = typeof b, c;\n return b == null || t === \"boolean\" ? constant(b)\n : (t === \"number\" ? number\n : t === \"string\" ? ((c = color(b)) ? (b = c, rgb) : string)\n : b instanceof color ? rgb\n : b instanceof Date ? date\n : isNumberArray(b) ? numberArray\n : Array.isArray(b) ? genericArray\n : typeof b.valueOf !== \"function\" && typeof b.toString !== \"function\" || isNaN(b) ? object\n : number)(a, b);\n}\n","export default function(a, b) {\n return a = +a, b = +b, function(t) {\n return Math.round(a * (1 - t) + b * t);\n };\n}\n","export default function(x) {\n return +x;\n}\n","import {bisect} from \"d3-array\";\nimport {interpolate as interpolateValue, interpolateNumber, interpolateRound} from \"d3-interpolate\";\nimport constant from \"./constant.js\";\nimport number from \"./number.js\";\n\nvar unit = [0, 1];\n\nexport function identity(x) {\n return x;\n}\n\nfunction normalize(a, b) {\n return (b -= (a = +a))\n ? function(x) { return (x - a) / b; }\n : constant(isNaN(b) ? NaN : 0.5);\n}\n\nfunction clamper(a, b) {\n var t;\n if (a > b) t = a, a = b, b = t;\n return function(x) { return Math.max(a, Math.min(b, x)); };\n}\n\n// normalize(a, b)(x) takes a domain value x in [a,b] and returns the corresponding parameter t in [0,1].\n// interpolate(a, b)(t) takes a parameter t in [0,1] and returns the corresponding range value x in [a,b].\nfunction bimap(domain, range, interpolate) {\n var d0 = domain[0], d1 = domain[1], r0 = range[0], r1 = range[1];\n if (d1 < d0) d0 = normalize(d1, d0), r0 = interpolate(r1, r0);\n else d0 = normalize(d0, d1), r0 = interpolate(r0, r1);\n return function(x) { return r0(d0(x)); };\n}\n\nfunction polymap(domain, range, interpolate) {\n var j = Math.min(domain.length, range.length) - 1,\n d = new Array(j),\n r = new Array(j),\n i = -1;\n\n // Reverse descending domains.\n if (domain[j] < domain[0]) {\n domain = domain.slice().reverse();\n range = range.slice().reverse();\n }\n\n while (++i < j) {\n d[i] = normalize(domain[i], domain[i + 1]);\n r[i] = interpolate(range[i], range[i + 1]);\n }\n\n return function(x) {\n var i = bisect(domain, x, 1, j) - 1;\n return r[i](d[i](x));\n };\n}\n\nexport function copy(source, target) {\n return target\n .domain(source.domain())\n .range(source.range())\n .interpolate(source.interpolate())\n .clamp(source.clamp())\n .unknown(source.unknown());\n}\n\nexport function transformer() {\n var domain = unit,\n range = unit,\n interpolate = interpolateValue,\n transform,\n untransform,\n unknown,\n clamp = identity,\n piecewise,\n output,\n input;\n\n function rescale() {\n var n = Math.min(domain.length, range.length);\n if (clamp !== identity) clamp = clamper(domain[0], domain[n - 1]);\n piecewise = n > 2 ? polymap : bimap;\n output = input = null;\n return scale;\n }\n\n function scale(x) {\n return isNaN(x = +x) ? unknown : (output || (output = piecewise(domain.map(transform), range, interpolate)))(transform(clamp(x)));\n }\n\n scale.invert = function(y) {\n return clamp(untransform((input || (input = piecewise(range, domain.map(transform), interpolateNumber)))(y)));\n };\n\n scale.domain = function(_) {\n return arguments.length ? (domain = Array.from(_, number), rescale()) : domain.slice();\n };\n\n scale.range = function(_) {\n return arguments.length ? (range = Array.from(_), rescale()) : range.slice();\n };\n\n scale.rangeRound = function(_) {\n return range = Array.from(_), interpolate = interpolateRound, rescale();\n };\n\n scale.clamp = function(_) {\n return arguments.length ? (clamp = _ ? true : identity, rescale()) : clamp !== identity;\n };\n\n scale.interpolate = function(_) {\n return arguments.length ? (interpolate = _, rescale()) : interpolate;\n };\n\n scale.unknown = function(_) {\n return arguments.length ? (unknown = _, scale) : unknown;\n };\n\n return function(t, u) {\n transform = t, untransform = u;\n return rescale();\n };\n}\n\nexport default function continuous() {\n return transformer()(identity, identity);\n}\n","export default function(x) {\n return function() {\n return x;\n };\n}\n","import exponent from \"./exponent.js\";\n\nexport default function(step, value) {\n return Math.max(0, Math.max(-8, Math.min(8, Math.floor(exponent(value) / 3))) * 3 - exponent(Math.abs(step)));\n}\n","import {tickStep} from \"d3-array\";\nimport {format, formatPrefix, formatSpecifier, precisionFixed, precisionPrefix, precisionRound} from \"d3-format\";\n\nexport default function(start, stop, count, specifier) {\n var step = tickStep(start, stop, count),\n precision;\n specifier = formatSpecifier(specifier == null ? \",f\" : specifier);\n switch (specifier.type) {\n case \"s\": {\n var value = Math.max(Math.abs(start), Math.abs(stop));\n if (specifier.precision == null && !isNaN(precision = precisionPrefix(step, value))) specifier.precision = precision;\n return formatPrefix(specifier, value);\n }\n case \"\":\n case \"e\":\n case \"g\":\n case \"p\":\n case \"r\": {\n if (specifier.precision == null && !isNaN(precision = precisionRound(step, Math.max(Math.abs(start), Math.abs(stop))))) specifier.precision = precision - (specifier.type === \"e\");\n break;\n }\n case \"f\":\n case \"%\": {\n if (specifier.precision == null && !isNaN(precision = precisionFixed(step))) specifier.precision = precision - (specifier.type === \"%\") * 2;\n break;\n }\n }\n return format(specifier);\n}\n","import exponent from \"./exponent.js\";\n\nexport default function(step, max) {\n step = Math.abs(step), max = Math.abs(max) - step;\n return Math.max(0, exponent(max) - exponent(step)) + 1;\n}\n","import exponent from \"./exponent.js\";\n\nexport default function(step) {\n return Math.max(0, -exponent(Math.abs(step)));\n}\n","import {ticks, tickIncrement} from \"d3-array\";\nimport continuous, {copy} from \"./continuous.js\";\nimport {initRange} from \"./init.js\";\nimport tickFormat from \"./tickFormat.js\";\n\nexport function linearish(scale) {\n var domain = scale.domain;\n\n scale.ticks = function(count) {\n var d = domain();\n return ticks(d[0], d[d.length - 1], count == null ? 10 : count);\n };\n\n scale.tickFormat = function(count, specifier) {\n var d = domain();\n return tickFormat(d[0], d[d.length - 1], count == null ? 10 : count, specifier);\n };\n\n scale.nice = function(count) {\n if (count == null) count = 10;\n\n var d = domain(),\n i0 = 0,\n i1 = d.length - 1,\n start = d[i0],\n stop = d[i1],\n step;\n\n if (stop < start) {\n step = start, start = stop, stop = step;\n step = i0, i0 = i1, i1 = step;\n }\n\n step = tickIncrement(start, stop, count);\n\n if (step > 0) {\n start = Math.floor(start / step) * step;\n stop = Math.ceil(stop / step) * step;\n step = tickIncrement(start, stop, count);\n } else if (step < 0) {\n start = Math.ceil(start * step) / step;\n stop = Math.floor(stop * step) / step;\n step = tickIncrement(start, stop, count);\n }\n\n if (step > 0) {\n d[i0] = Math.floor(start / step) * step;\n d[i1] = Math.ceil(stop / step) * step;\n domain(d);\n } else if (step < 0) {\n d[i0] = Math.ceil(start * step) / step;\n d[i1] = Math.floor(stop * step) / step;\n domain(d);\n }\n\n return scale;\n };\n\n return scale;\n}\n\nexport default function linear() {\n var scale = continuous();\n\n scale.copy = function() {\n return copy(scale, linear());\n };\n\n initRange.apply(scale, arguments);\n\n return linearish(scale);\n}\n","import {linearish} from \"./linear.js\";\nimport {copy, identity, transformer} from \"./continuous.js\";\nimport {initRange} from \"./init.js\";\n\nfunction transformPow(exponent) {\n return function(x) {\n return x < 0 ? -Math.pow(-x, exponent) : Math.pow(x, exponent);\n };\n}\n\nfunction transformSqrt(x) {\n return x < 0 ? -Math.sqrt(-x) : Math.sqrt(x);\n}\n\nfunction transformSquare(x) {\n return x < 0 ? -x * x : x * x;\n}\n\nexport function powish(transform) {\n var scale = transform(identity, identity),\n exponent = 1;\n\n function rescale() {\n return exponent === 1 ? transform(identity, identity)\n : exponent === 0.5 ? transform(transformSqrt, transformSquare)\n : transform(transformPow(exponent), transformPow(1 / exponent));\n }\n\n scale.exponent = function(_) {\n return arguments.length ? (exponent = +_, rescale()) : exponent;\n };\n\n return linearish(scale);\n}\n\nexport default function pow() {\n var scale = powish(transformer());\n\n scale.copy = function() {\n return copy(scale, pow()).exponent(scale.exponent());\n };\n\n initRange.apply(scale, arguments);\n\n return scale;\n}\n\nexport function sqrt() {\n return pow.apply(null, arguments).exponent(0.5);\n}\n","var t0 = new Date,\n t1 = new Date;\n\nexport default function newInterval(floori, offseti, count, field) {\n\n function interval(date) {\n return floori(date = arguments.length === 0 ? new Date : new Date(+date)), date;\n }\n\n interval.floor = function(date) {\n return floori(date = new Date(+date)), date;\n };\n\n interval.ceil = function(date) {\n return floori(date = new Date(date - 1)), offseti(date, 1), floori(date), date;\n };\n\n interval.round = function(date) {\n var d0 = interval(date),\n d1 = interval.ceil(date);\n return date - d0 < d1 - date ? d0 : d1;\n };\n\n interval.offset = function(date, step) {\n return offseti(date = new Date(+date), step == null ? 1 : Math.floor(step)), date;\n };\n\n interval.range = function(start, stop, step) {\n var range = [], previous;\n start = interval.ceil(start);\n step = step == null ? 1 : Math.floor(step);\n if (!(start < stop) || !(step > 0)) return range; // also handles Invalid Date\n do range.push(previous = new Date(+start)), offseti(start, step), floori(start);\n while (previous < start && start < stop);\n return range;\n };\n\n interval.filter = function(test) {\n return newInterval(function(date) {\n if (date >= date) while (floori(date), !test(date)) date.setTime(date - 1);\n }, function(date, step) {\n if (date >= date) {\n if (step < 0) while (++step <= 0) {\n while (offseti(date, -1), !test(date)) {} // eslint-disable-line no-empty\n } else while (--step >= 0) {\n while (offseti(date, +1), !test(date)) {} // eslint-disable-line no-empty\n }\n }\n });\n };\n\n if (count) {\n interval.count = function(start, end) {\n t0.setTime(+start), t1.setTime(+end);\n floori(t0), floori(t1);\n return Math.floor(count(t0, t1));\n };\n\n interval.every = function(step) {\n step = Math.floor(step);\n return !isFinite(step) || !(step > 0) ? null\n : !(step > 1) ? interval\n : interval.filter(field\n ? function(d) { return field(d) % step === 0; }\n : function(d) { return interval.count(0, d) % step === 0; });\n };\n }\n\n return interval;\n}\n","import interval from \"./interval.js\";\n\nvar year = interval(function(date) {\n date.setMonth(0, 1);\n date.setHours(0, 0, 0, 0);\n}, function(date, step) {\n date.setFullYear(date.getFullYear() + step);\n}, function(start, end) {\n return end.getFullYear() - start.getFullYear();\n}, function(date) {\n return date.getFullYear();\n});\n\n// An optimized implementation for this simple case.\nyear.every = function(k) {\n return !isFinite(k = Math.floor(k)) || !(k > 0) ? null : interval(function(date) {\n date.setFullYear(Math.floor(date.getFullYear() / k) * k);\n date.setMonth(0, 1);\n date.setHours(0, 0, 0, 0);\n }, function(date, step) {\n date.setFullYear(date.getFullYear() + step * k);\n });\n};\n\nexport default year;\nexport var years = year.range;\n","import interval from \"./interval.js\";\n\nvar month = interval(function(date) {\n date.setDate(1);\n date.setHours(0, 0, 0, 0);\n}, function(date, step) {\n date.setMonth(date.getMonth() + step);\n}, function(start, end) {\n return end.getMonth() - start.getMonth() + (end.getFullYear() - start.getFullYear()) * 12;\n}, function(date) {\n return date.getMonth();\n});\n\nexport default month;\nexport var months = month.range;\n","import interval from \"./interval.js\";\nimport {durationMinute, durationWeek} from \"./duration.js\";\n\nfunction weekday(i) {\n return interval(function(date) {\n date.setDate(date.getDate() - (date.getDay() + 7 - i) % 7);\n date.setHours(0, 0, 0, 0);\n }, function(date, step) {\n date.setDate(date.getDate() + step * 7);\n }, function(start, end) {\n return (end - start - (end.getTimezoneOffset() - start.getTimezoneOffset()) * durationMinute) / durationWeek;\n });\n}\n\nexport var sunday = weekday(0);\nexport var monday = weekday(1);\nexport var tuesday = weekday(2);\nexport var wednesday = weekday(3);\nexport var thursday = weekday(4);\nexport var friday = weekday(5);\nexport var saturday = weekday(6);\n\nexport var sundays = sunday.range;\nexport var mondays = monday.range;\nexport var tuesdays = tuesday.range;\nexport var wednesdays = wednesday.range;\nexport var thursdays = thursday.range;\nexport var fridays = friday.range;\nexport var saturdays = saturday.range;\n","export var durationSecond = 1e3;\nexport var durationMinute = 6e4;\nexport var durationHour = 36e5;\nexport var durationDay = 864e5;\nexport var durationWeek = 6048e5;\n","import interval from \"./interval.js\";\nimport {durationDay, durationMinute} from \"./duration.js\";\n\nvar day = interval(function(date) {\n date.setHours(0, 0, 0, 0);\n}, function(date, step) {\n date.setDate(date.getDate() + step);\n}, function(start, end) {\n return (end - start - (end.getTimezoneOffset() - start.getTimezoneOffset()) * durationMinute) / durationDay;\n}, function(date) {\n return date.getDate() - 1;\n});\n\nexport default day;\nexport var days = day.range;\n","import interval from \"./interval.js\";\nimport {durationHour, durationMinute, durationSecond} from \"./duration.js\";\n\nvar hour = interval(function(date) {\n date.setTime(date - date.getMilliseconds() - date.getSeconds() * durationSecond - date.getMinutes() * durationMinute);\n}, function(date, step) {\n date.setTime(+date + step * durationHour);\n}, function(start, end) {\n return (end - start) / durationHour;\n}, function(date) {\n return date.getHours();\n});\n\nexport default hour;\nexport var hours = hour.range;\n","import interval from \"./interval.js\";\nimport {durationMinute, durationSecond} from \"./duration.js\";\n\nvar minute = interval(function(date) {\n date.setTime(date - date.getMilliseconds() - date.getSeconds() * durationSecond);\n}, function(date, step) {\n date.setTime(+date + step * durationMinute);\n}, function(start, end) {\n return (end - start) / durationMinute;\n}, function(date) {\n return date.getMinutes();\n});\n\nexport default minute;\nexport var minutes = minute.range;\n","import interval from \"./interval.js\";\nimport {durationSecond} from \"./duration.js\";\n\nvar second = interval(function(date) {\n date.setTime(date - date.getMilliseconds());\n}, function(date, step) {\n date.setTime(+date + step * durationSecond);\n}, function(start, end) {\n return (end - start) / durationSecond;\n}, function(date) {\n return date.getUTCSeconds();\n});\n\nexport default second;\nexport var seconds = second.range;\n","import interval from \"./interval.js\";\n\nvar millisecond = interval(function() {\n // noop\n}, function(date, step) {\n date.setTime(+date + step);\n}, function(start, end) {\n return end - start;\n});\n\n// An optimized implementation for this simple case.\nmillisecond.every = function(k) {\n k = Math.floor(k);\n if (!isFinite(k) || !(k > 0)) return null;\n if (!(k > 1)) return millisecond;\n return interval(function(date) {\n date.setTime(Math.floor(date / k) * k);\n }, function(date, step) {\n date.setTime(+date + step * k);\n }, function(start, end) {\n return (end - start) / k;\n });\n};\n\nexport default millisecond;\nexport var milliseconds = millisecond.range;\n","import interval from \"./interval.js\";\nimport {durationWeek} from \"./duration.js\";\n\nfunction utcWeekday(i) {\n return interval(function(date) {\n date.setUTCDate(date.getUTCDate() - (date.getUTCDay() + 7 - i) % 7);\n date.setUTCHours(0, 0, 0, 0);\n }, function(date, step) {\n date.setUTCDate(date.getUTCDate() + step * 7);\n }, function(start, end) {\n return (end - start) / durationWeek;\n });\n}\n\nexport var utcSunday = utcWeekday(0);\nexport var utcMonday = utcWeekday(1);\nexport var utcTuesday = utcWeekday(2);\nexport var utcWednesday = utcWeekday(3);\nexport var utcThursday = utcWeekday(4);\nexport var utcFriday = utcWeekday(5);\nexport var utcSaturday = utcWeekday(6);\n\nexport var utcSundays = utcSunday.range;\nexport var utcMondays = utcMonday.range;\nexport var utcTuesdays = utcTuesday.range;\nexport var utcWednesdays = utcWednesday.range;\nexport var utcThursdays = utcThursday.range;\nexport var utcFridays = utcFriday.range;\nexport var utcSaturdays = utcSaturday.range;\n","import interval from \"./interval.js\";\nimport {durationDay} from \"./duration.js\";\n\nvar utcDay = interval(function(date) {\n date.setUTCHours(0, 0, 0, 0);\n}, function(date, step) {\n date.setUTCDate(date.getUTCDate() + step);\n}, function(start, end) {\n return (end - start) / durationDay;\n}, function(date) {\n return date.getUTCDate() - 1;\n});\n\nexport default utcDay;\nexport var utcDays = utcDay.range;\n","import interval from \"./interval.js\";\n\nvar utcYear = interval(function(date) {\n date.setUTCMonth(0, 1);\n date.setUTCHours(0, 0, 0, 0);\n}, function(date, step) {\n date.setUTCFullYear(date.getUTCFullYear() + step);\n}, function(start, end) {\n return end.getUTCFullYear() - start.getUTCFullYear();\n}, function(date) {\n return date.getUTCFullYear();\n});\n\n// An optimized implementation for this simple case.\nutcYear.every = function(k) {\n return !isFinite(k = Math.floor(k)) || !(k > 0) ? null : interval(function(date) {\n date.setUTCFullYear(Math.floor(date.getUTCFullYear() / k) * k);\n date.setUTCMonth(0, 1);\n date.setUTCHours(0, 0, 0, 0);\n }, function(date, step) {\n date.setUTCFullYear(date.getUTCFullYear() + step * k);\n });\n};\n\nexport default utcYear;\nexport var utcYears = utcYear.range;\n","import {\n timeDay,\n timeSunday,\n timeMonday,\n timeThursday,\n timeYear,\n utcDay,\n utcSunday,\n utcMonday,\n utcThursday,\n utcYear\n} from \"d3-time\";\n\nfunction localDate(d) {\n if (0 <= d.y && d.y < 100) {\n var date = new Date(-1, d.m, d.d, d.H, d.M, d.S, d.L);\n date.setFullYear(d.y);\n return date;\n }\n return new Date(d.y, d.m, d.d, d.H, d.M, d.S, d.L);\n}\n\nfunction utcDate(d) {\n if (0 <= d.y && d.y < 100) {\n var date = new Date(Date.UTC(-1, d.m, d.d, d.H, d.M, d.S, d.L));\n date.setUTCFullYear(d.y);\n return date;\n }\n return new Date(Date.UTC(d.y, d.m, d.d, d.H, d.M, d.S, d.L));\n}\n\nfunction newDate(y, m, d) {\n return {y: y, m: m, d: d, H: 0, M: 0, S: 0, L: 0};\n}\n\nexport default function formatLocale(locale) {\n var locale_dateTime = locale.dateTime,\n locale_date = locale.date,\n locale_time = locale.time,\n locale_periods = locale.periods,\n locale_weekdays = locale.days,\n locale_shortWeekdays = locale.shortDays,\n locale_months = locale.months,\n locale_shortMonths = locale.shortMonths;\n\n var periodRe = formatRe(locale_periods),\n periodLookup = formatLookup(locale_periods),\n weekdayRe = formatRe(locale_weekdays),\n weekdayLookup = formatLookup(locale_weekdays),\n shortWeekdayRe = formatRe(locale_shortWeekdays),\n shortWeekdayLookup = formatLookup(locale_shortWeekdays),\n monthRe = formatRe(locale_months),\n monthLookup = formatLookup(locale_months),\n shortMonthRe = formatRe(locale_shortMonths),\n shortMonthLookup = formatLookup(locale_shortMonths);\n\n var formats = {\n \"a\": formatShortWeekday,\n \"A\": formatWeekday,\n \"b\": formatShortMonth,\n \"B\": formatMonth,\n \"c\": null,\n \"d\": formatDayOfMonth,\n \"e\": formatDayOfMonth,\n \"f\": formatMicroseconds,\n \"H\": formatHour24,\n \"I\": formatHour12,\n \"j\": formatDayOfYear,\n \"L\": formatMilliseconds,\n \"m\": formatMonthNumber,\n \"M\": formatMinutes,\n \"p\": formatPeriod,\n \"q\": formatQuarter,\n \"Q\": formatUnixTimestamp,\n \"s\": formatUnixTimestampSeconds,\n \"S\": formatSeconds,\n \"u\": formatWeekdayNumberMonday,\n \"U\": formatWeekNumberSunday,\n \"V\": formatWeekNumberISO,\n \"w\": formatWeekdayNumberSunday,\n \"W\": formatWeekNumberMonday,\n \"x\": null,\n \"X\": null,\n \"y\": formatYear,\n \"Y\": formatFullYear,\n \"Z\": formatZone,\n \"%\": formatLiteralPercent\n };\n\n var utcFormats = {\n \"a\": formatUTCShortWeekday,\n \"A\": formatUTCWeekday,\n \"b\": formatUTCShortMonth,\n \"B\": formatUTCMonth,\n \"c\": null,\n \"d\": formatUTCDayOfMonth,\n \"e\": formatUTCDayOfMonth,\n \"f\": formatUTCMicroseconds,\n \"H\": formatUTCHour24,\n \"I\": formatUTCHour12,\n \"j\": formatUTCDayOfYear,\n \"L\": formatUTCMilliseconds,\n \"m\": formatUTCMonthNumber,\n \"M\": formatUTCMinutes,\n \"p\": formatUTCPeriod,\n \"q\": formatUTCQuarter,\n \"Q\": formatUnixTimestamp,\n \"s\": formatUnixTimestampSeconds,\n \"S\": formatUTCSeconds,\n \"u\": formatUTCWeekdayNumberMonday,\n \"U\": formatUTCWeekNumberSunday,\n \"V\": formatUTCWeekNumberISO,\n \"w\": formatUTCWeekdayNumberSunday,\n \"W\": formatUTCWeekNumberMonday,\n \"x\": null,\n \"X\": null,\n \"y\": formatUTCYear,\n \"Y\": formatUTCFullYear,\n \"Z\": formatUTCZone,\n \"%\": formatLiteralPercent\n };\n\n var parses = {\n \"a\": parseShortWeekday,\n \"A\": parseWeekday,\n \"b\": parseShortMonth,\n \"B\": parseMonth,\n \"c\": parseLocaleDateTime,\n \"d\": parseDayOfMonth,\n \"e\": parseDayOfMonth,\n \"f\": parseMicroseconds,\n \"H\": parseHour24,\n \"I\": parseHour24,\n \"j\": parseDayOfYear,\n \"L\": parseMilliseconds,\n \"m\": parseMonthNumber,\n \"M\": parseMinutes,\n \"p\": parsePeriod,\n \"q\": parseQuarter,\n \"Q\": parseUnixTimestamp,\n \"s\": parseUnixTimestampSeconds,\n \"S\": parseSeconds,\n \"u\": parseWeekdayNumberMonday,\n \"U\": parseWeekNumberSunday,\n \"V\": parseWeekNumberISO,\n \"w\": parseWeekdayNumberSunday,\n \"W\": parseWeekNumberMonday,\n \"x\": parseLocaleDate,\n \"X\": parseLocaleTime,\n \"y\": parseYear,\n \"Y\": parseFullYear,\n \"Z\": parseZone,\n \"%\": parseLiteralPercent\n };\n\n // These recursive directive definitions must be deferred.\n formats.x = newFormat(locale_date, formats);\n formats.X = newFormat(locale_time, formats);\n formats.c = newFormat(locale_dateTime, formats);\n utcFormats.x = newFormat(locale_date, utcFormats);\n utcFormats.X = newFormat(locale_time, utcFormats);\n utcFormats.c = newFormat(locale_dateTime, utcFormats);\n\n function newFormat(specifier, formats) {\n return function(date) {\n var string = [],\n i = -1,\n j = 0,\n n = specifier.length,\n c,\n pad,\n format;\n\n if (!(date instanceof Date)) date = new Date(+date);\n\n while (++i < n) {\n if (specifier.charCodeAt(i) === 37) {\n string.push(specifier.slice(j, i));\n if ((pad = pads[c = specifier.charAt(++i)]) != null) c = specifier.charAt(++i);\n else pad = c === \"e\" ? \" \" : \"0\";\n if (format = formats[c]) c = format(date, pad);\n string.push(c);\n j = i + 1;\n }\n }\n\n string.push(specifier.slice(j, i));\n return string.join(\"\");\n };\n }\n\n function newParse(specifier, Z) {\n return function(string) {\n var d = newDate(1900, undefined, 1),\n i = parseSpecifier(d, specifier, string += \"\", 0),\n week, day;\n if (i != string.length) return null;\n\n // If a UNIX timestamp is specified, return it.\n if (\"Q\" in d) return new Date(d.Q);\n if (\"s\" in d) return new Date(d.s * 1000 + (\"L\" in d ? d.L : 0));\n\n // If this is utcParse, never use the local timezone.\n if (Z && !(\"Z\" in d)) d.Z = 0;\n\n // The am-pm flag is 0 for AM, and 1 for PM.\n if (\"p\" in d) d.H = d.H % 12 + d.p * 12;\n\n // If the month was not specified, inherit from the quarter.\n if (d.m === undefined) d.m = \"q\" in d ? d.q : 0;\n\n // Convert day-of-week and week-of-year to day-of-year.\n if (\"V\" in d) {\n if (d.V < 1 || d.V > 53) return null;\n if (!(\"w\" in d)) d.w = 1;\n if (\"Z\" in d) {\n week = utcDate(newDate(d.y, 0, 1)), day = week.getUTCDay();\n week = day > 4 || day === 0 ? utcMonday.ceil(week) : utcMonday(week);\n week = utcDay.offset(week, (d.V - 1) * 7);\n d.y = week.getUTCFullYear();\n d.m = week.getUTCMonth();\n d.d = week.getUTCDate() + (d.w + 6) % 7;\n } else {\n week = localDate(newDate(d.y, 0, 1)), day = week.getDay();\n week = day > 4 || day === 0 ? timeMonday.ceil(week) : timeMonday(week);\n week = timeDay.offset(week, (d.V - 1) * 7);\n d.y = week.getFullYear();\n d.m = week.getMonth();\n d.d = week.getDate() + (d.w + 6) % 7;\n }\n } else if (\"W\" in d || \"U\" in d) {\n if (!(\"w\" in d)) d.w = \"u\" in d ? d.u % 7 : \"W\" in d ? 1 : 0;\n day = \"Z\" in d ? utcDate(newDate(d.y, 0, 1)).getUTCDay() : localDate(newDate(d.y, 0, 1)).getDay();\n d.m = 0;\n d.d = \"W\" in d ? (d.w + 6) % 7 + d.W * 7 - (day + 5) % 7 : d.w + d.U * 7 - (day + 6) % 7;\n }\n\n // If a time zone is specified, all fields are interpreted as UTC and then\n // offset according to the specified time zone.\n if (\"Z\" in d) {\n d.H += d.Z / 100 | 0;\n d.M += d.Z % 100;\n return utcDate(d);\n }\n\n // Otherwise, all fields are in local time.\n return localDate(d);\n };\n }\n\n function parseSpecifier(d, specifier, string, j) {\n var i = 0,\n n = specifier.length,\n m = string.length,\n c,\n parse;\n\n while (i < n) {\n if (j >= m) return -1;\n c = specifier.charCodeAt(i++);\n if (c === 37) {\n c = specifier.charAt(i++);\n parse = parses[c in pads ? specifier.charAt(i++) : c];\n if (!parse || ((j = parse(d, string, j)) < 0)) return -1;\n } else if (c != string.charCodeAt(j++)) {\n return -1;\n }\n }\n\n return j;\n }\n\n function parsePeriod(d, string, i) {\n var n = periodRe.exec(string.slice(i));\n return n ? (d.p = periodLookup[n[0].toLowerCase()], i + n[0].length) : -1;\n }\n\n function parseShortWeekday(d, string, i) {\n var n = shortWeekdayRe.exec(string.slice(i));\n return n ? (d.w = shortWeekdayLookup[n[0].toLowerCase()], i + n[0].length) : -1;\n }\n\n function parseWeekday(d, string, i) {\n var n = weekdayRe.exec(string.slice(i));\n return n ? (d.w = weekdayLookup[n[0].toLowerCase()], i + n[0].length) : -1;\n }\n\n function parseShortMonth(d, string, i) {\n var n = shortMonthRe.exec(string.slice(i));\n return n ? (d.m = shortMonthLookup[n[0].toLowerCase()], i + n[0].length) : -1;\n }\n\n function parseMonth(d, string, i) {\n var n = monthRe.exec(string.slice(i));\n return n ? (d.m = monthLookup[n[0].toLowerCase()], i + n[0].length) : -1;\n }\n\n function parseLocaleDateTime(d, string, i) {\n return parseSpecifier(d, locale_dateTime, string, i);\n }\n\n function parseLocaleDate(d, string, i) {\n return parseSpecifier(d, locale_date, string, i);\n }\n\n function parseLocaleTime(d, string, i) {\n return parseSpecifier(d, locale_time, string, i);\n }\n\n function formatShortWeekday(d) {\n return locale_shortWeekdays[d.getDay()];\n }\n\n function formatWeekday(d) {\n return locale_weekdays[d.getDay()];\n }\n\n function formatShortMonth(d) {\n return locale_shortMonths[d.getMonth()];\n }\n\n function formatMonth(d) {\n return locale_months[d.getMonth()];\n }\n\n function formatPeriod(d) {\n return locale_periods[+(d.getHours() >= 12)];\n }\n\n function formatQuarter(d) {\n return 1 + ~~(d.getMonth() / 3);\n }\n\n function formatUTCShortWeekday(d) {\n return locale_shortWeekdays[d.getUTCDay()];\n }\n\n function formatUTCWeekday(d) {\n return locale_weekdays[d.getUTCDay()];\n }\n\n function formatUTCShortMonth(d) {\n return locale_shortMonths[d.getUTCMonth()];\n }\n\n function formatUTCMonth(d) {\n return locale_months[d.getUTCMonth()];\n }\n\n function formatUTCPeriod(d) {\n return locale_periods[+(d.getUTCHours() >= 12)];\n }\n\n function formatUTCQuarter(d) {\n return 1 + ~~(d.getUTCMonth() / 3);\n }\n\n return {\n format: function(specifier) {\n var f = newFormat(specifier += \"\", formats);\n f.toString = function() { return specifier; };\n return f;\n },\n parse: function(specifier) {\n var p = newParse(specifier += \"\", false);\n p.toString = function() { return specifier; };\n return p;\n },\n utcFormat: function(specifier) {\n var f = newFormat(specifier += \"\", utcFormats);\n f.toString = function() { return specifier; };\n return f;\n },\n utcParse: function(specifier) {\n var p = newParse(specifier += \"\", true);\n p.toString = function() { return specifier; };\n return p;\n }\n };\n}\n\nvar pads = {\"-\": \"\", \"_\": \" \", \"0\": \"0\"},\n numberRe = /^\\s*\\d+/, // note: ignores next directive\n percentRe = /^%/,\n requoteRe = /[\\\\^$*+?|[\\]().{}]/g;\n\nfunction pad(value, fill, width) {\n var sign = value < 0 ? \"-\" : \"\",\n string = (sign ? -value : value) + \"\",\n length = string.length;\n return sign + (length < width ? new Array(width - length + 1).join(fill) + string : string);\n}\n\nfunction requote(s) {\n return s.replace(requoteRe, \"\\\\$&\");\n}\n\nfunction formatRe(names) {\n return new RegExp(\"^(?:\" + names.map(requote).join(\"|\") + \")\", \"i\");\n}\n\nfunction formatLookup(names) {\n var map = {}, i = -1, n = names.length;\n while (++i < n) map[names[i].toLowerCase()] = i;\n return map;\n}\n\nfunction parseWeekdayNumberSunday(d, string, i) {\n var n = numberRe.exec(string.slice(i, i + 1));\n return n ? (d.w = +n[0], i + n[0].length) : -1;\n}\n\nfunction parseWeekdayNumberMonday(d, string, i) {\n var n = numberRe.exec(string.slice(i, i + 1));\n return n ? (d.u = +n[0], i + n[0].length) : -1;\n}\n\nfunction parseWeekNumberSunday(d, string, i) {\n var n = numberRe.exec(string.slice(i, i + 2));\n return n ? (d.U = +n[0], i + n[0].length) : -1;\n}\n\nfunction parseWeekNumberISO(d, string, i) {\n var n = numberRe.exec(string.slice(i, i + 2));\n return n ? (d.V = +n[0], i + n[0].length) : -1;\n}\n\nfunction parseWeekNumberMonday(d, string, i) {\n var n = numberRe.exec(string.slice(i, i + 2));\n return n ? (d.W = +n[0], i + n[0].length) : -1;\n}\n\nfunction parseFullYear(d, string, i) {\n var n = numberRe.exec(string.slice(i, i + 4));\n return n ? (d.y = +n[0], i + n[0].length) : -1;\n}\n\nfunction parseYear(d, string, i) {\n var n = numberRe.exec(string.slice(i, i + 2));\n return n ? (d.y = +n[0] + (+n[0] > 68 ? 1900 : 2000), i + n[0].length) : -1;\n}\n\nfunction parseZone(d, string, i) {\n var n = /^(Z)|([+-]\\d\\d)(?::?(\\d\\d))?/.exec(string.slice(i, i + 6));\n return n ? (d.Z = n[1] ? 0 : -(n[2] + (n[3] || \"00\")), i + n[0].length) : -1;\n}\n\nfunction parseQuarter(d, string, i) {\n var n = numberRe.exec(string.slice(i, i + 1));\n return n ? (d.q = n[0] * 3 - 3, i + n[0].length) : -1;\n}\n\nfunction parseMonthNumber(d, string, i) {\n var n = numberRe.exec(string.slice(i, i + 2));\n return n ? (d.m = n[0] - 1, i + n[0].length) : -1;\n}\n\nfunction parseDayOfMonth(d, string, i) {\n var n = numberRe.exec(string.slice(i, i + 2));\n return n ? (d.d = +n[0], i + n[0].length) : -1;\n}\n\nfunction parseDayOfYear(d, string, i) {\n var n = numberRe.exec(string.slice(i, i + 3));\n return n ? (d.m = 0, d.d = +n[0], i + n[0].length) : -1;\n}\n\nfunction parseHour24(d, string, i) {\n var n = numberRe.exec(string.slice(i, i + 2));\n return n ? (d.H = +n[0], i + n[0].length) : -1;\n}\n\nfunction parseMinutes(d, string, i) {\n var n = numberRe.exec(string.slice(i, i + 2));\n return n ? (d.M = +n[0], i + n[0].length) : -1;\n}\n\nfunction parseSeconds(d, string, i) {\n var n = numberRe.exec(string.slice(i, i + 2));\n return n ? (d.S = +n[0], i + n[0].length) : -1;\n}\n\nfunction parseMilliseconds(d, string, i) {\n var n = numberRe.exec(string.slice(i, i + 3));\n return n ? (d.L = +n[0], i + n[0].length) : -1;\n}\n\nfunction parseMicroseconds(d, string, i) {\n var n = numberRe.exec(string.slice(i, i + 6));\n return n ? (d.L = Math.floor(n[0] / 1000), i + n[0].length) : -1;\n}\n\nfunction parseLiteralPercent(d, string, i) {\n var n = percentRe.exec(string.slice(i, i + 1));\n return n ? i + n[0].length : -1;\n}\n\nfunction parseUnixTimestamp(d, string, i) {\n var n = numberRe.exec(string.slice(i));\n return n ? (d.Q = +n[0], i + n[0].length) : -1;\n}\n\nfunction parseUnixTimestampSeconds(d, string, i) {\n var n = numberRe.exec(string.slice(i));\n return n ? (d.s = +n[0], i + n[0].length) : -1;\n}\n\nfunction formatDayOfMonth(d, p) {\n return pad(d.getDate(), p, 2);\n}\n\nfunction formatHour24(d, p) {\n return pad(d.getHours(), p, 2);\n}\n\nfunction formatHour12(d, p) {\n return pad(d.getHours() % 12 || 12, p, 2);\n}\n\nfunction formatDayOfYear(d, p) {\n return pad(1 + timeDay.count(timeYear(d), d), p, 3);\n}\n\nfunction formatMilliseconds(d, p) {\n return pad(d.getMilliseconds(), p, 3);\n}\n\nfunction formatMicroseconds(d, p) {\n return formatMilliseconds(d, p) + \"000\";\n}\n\nfunction formatMonthNumber(d, p) {\n return pad(d.getMonth() + 1, p, 2);\n}\n\nfunction formatMinutes(d, p) {\n return pad(d.getMinutes(), p, 2);\n}\n\nfunction formatSeconds(d, p) {\n return pad(d.getSeconds(), p, 2);\n}\n\nfunction formatWeekdayNumberMonday(d) {\n var day = d.getDay();\n return day === 0 ? 7 : day;\n}\n\nfunction formatWeekNumberSunday(d, p) {\n return pad(timeSunday.count(timeYear(d) - 1, d), p, 2);\n}\n\nfunction formatWeekNumberISO(d, p) {\n var day = d.getDay();\n d = (day >= 4 || day === 0) ? timeThursday(d) : timeThursday.ceil(d);\n return pad(timeThursday.count(timeYear(d), d) + (timeYear(d).getDay() === 4), p, 2);\n}\n\nfunction formatWeekdayNumberSunday(d) {\n return d.getDay();\n}\n\nfunction formatWeekNumberMonday(d, p) {\n return pad(timeMonday.count(timeYear(d) - 1, d), p, 2);\n}\n\nfunction formatYear(d, p) {\n return pad(d.getFullYear() % 100, p, 2);\n}\n\nfunction formatFullYear(d, p) {\n return pad(d.getFullYear() % 10000, p, 4);\n}\n\nfunction formatZone(d) {\n var z = d.getTimezoneOffset();\n return (z > 0 ? \"-\" : (z *= -1, \"+\"))\n + pad(z / 60 | 0, \"0\", 2)\n + pad(z % 60, \"0\", 2);\n}\n\nfunction formatUTCDayOfMonth(d, p) {\n return pad(d.getUTCDate(), p, 2);\n}\n\nfunction formatUTCHour24(d, p) {\n return pad(d.getUTCHours(), p, 2);\n}\n\nfunction formatUTCHour12(d, p) {\n return pad(d.getUTCHours() % 12 || 12, p, 2);\n}\n\nfunction formatUTCDayOfYear(d, p) {\n return pad(1 + utcDay.count(utcYear(d), d), p, 3);\n}\n\nfunction formatUTCMilliseconds(d, p) {\n return pad(d.getUTCMilliseconds(), p, 3);\n}\n\nfunction formatUTCMicroseconds(d, p) {\n return formatUTCMilliseconds(d, p) + \"000\";\n}\n\nfunction formatUTCMonthNumber(d, p) {\n return pad(d.getUTCMonth() + 1, p, 2);\n}\n\nfunction formatUTCMinutes(d, p) {\n return pad(d.getUTCMinutes(), p, 2);\n}\n\nfunction formatUTCSeconds(d, p) {\n return pad(d.getUTCSeconds(), p, 2);\n}\n\nfunction formatUTCWeekdayNumberMonday(d) {\n var dow = d.getUTCDay();\n return dow === 0 ? 7 : dow;\n}\n\nfunction formatUTCWeekNumberSunday(d, p) {\n return pad(utcSunday.count(utcYear(d) - 1, d), p, 2);\n}\n\nfunction formatUTCWeekNumberISO(d, p) {\n var day = d.getUTCDay();\n d = (day >= 4 || day === 0) ? utcThursday(d) : utcThursday.ceil(d);\n return pad(utcThursday.count(utcYear(d), d) + (utcYear(d).getUTCDay() === 4), p, 2);\n}\n\nfunction formatUTCWeekdayNumberSunday(d) {\n return d.getUTCDay();\n}\n\nfunction formatUTCWeekNumberMonday(d, p) {\n return pad(utcMonday.count(utcYear(d) - 1, d), p, 2);\n}\n\nfunction formatUTCYear(d, p) {\n return pad(d.getUTCFullYear() % 100, p, 2);\n}\n\nfunction formatUTCFullYear(d, p) {\n return pad(d.getUTCFullYear() % 10000, p, 4);\n}\n\nfunction formatUTCZone() {\n return \"+0000\";\n}\n\nfunction formatLiteralPercent() {\n return \"%\";\n}\n\nfunction formatUnixTimestamp(d) {\n return +d;\n}\n\nfunction formatUnixTimestampSeconds(d) {\n return Math.floor(+d / 1000);\n}\n","import formatLocale from \"./locale.js\";\n\nvar locale;\nexport var timeFormat;\nexport var timeParse;\nexport var utcFormat;\nexport var utcParse;\n\ndefaultLocale({\n dateTime: \"%x, %X\",\n date: \"%-m/%-d/%Y\",\n time: \"%-I:%M:%S %p\",\n periods: [\"AM\", \"PM\"],\n days: [\"Sunday\", \"Monday\", \"Tuesday\", \"Wednesday\", \"Thursday\", \"Friday\", \"Saturday\"],\n shortDays: [\"Sun\", \"Mon\", \"Tue\", \"Wed\", \"Thu\", \"Fri\", \"Sat\"],\n months: [\"January\", \"February\", \"March\", \"April\", \"May\", \"June\", \"July\", \"August\", \"September\", \"October\", \"November\", \"December\"],\n shortMonths: [\"Jan\", \"Feb\", \"Mar\", \"Apr\", \"May\", \"Jun\", \"Jul\", \"Aug\", \"Sep\", \"Oct\", \"Nov\", \"Dec\"]\n});\n\nexport default function defaultLocale(definition) {\n locale = formatLocale(definition);\n timeFormat = locale.format;\n timeParse = locale.parse;\n utcFormat = locale.utcFormat;\n utcParse = locale.utcParse;\n return locale;\n}\n","import {bisector, tickStep} from \"d3-array\";\nimport {timeYear, timeMonth, timeWeek, timeDay, timeHour, timeMinute, timeSecond, timeMillisecond} from \"d3-time\";\nimport {timeFormat} from \"d3-time-format\";\nimport continuous, {copy} from \"./continuous.js\";\nimport {initRange} from \"./init.js\";\nimport nice from \"./nice.js\";\n\nvar durationSecond = 1000,\n durationMinute = durationSecond * 60,\n durationHour = durationMinute * 60,\n durationDay = durationHour * 24,\n durationWeek = durationDay * 7,\n durationMonth = durationDay * 30,\n durationYear = durationDay * 365;\n\nfunction date(t) {\n return new Date(t);\n}\n\nfunction number(t) {\n return t instanceof Date ? +t : +new Date(+t);\n}\n\nexport function calendar(year, month, week, day, hour, minute, second, millisecond, format) {\n var scale = continuous(),\n invert = scale.invert,\n domain = scale.domain;\n\n var formatMillisecond = format(\".%L\"),\n formatSecond = format(\":%S\"),\n formatMinute = format(\"%I:%M\"),\n formatHour = format(\"%I %p\"),\n formatDay = format(\"%a %d\"),\n formatWeek = format(\"%b %d\"),\n formatMonth = format(\"%B\"),\n formatYear = format(\"%Y\");\n\n var tickIntervals = [\n [second, 1, durationSecond],\n [second, 5, 5 * durationSecond],\n [second, 15, 15 * durationSecond],\n [second, 30, 30 * durationSecond],\n [minute, 1, durationMinute],\n [minute, 5, 5 * durationMinute],\n [minute, 15, 15 * durationMinute],\n [minute, 30, 30 * durationMinute],\n [ hour, 1, durationHour ],\n [ hour, 3, 3 * durationHour ],\n [ hour, 6, 6 * durationHour ],\n [ hour, 12, 12 * durationHour ],\n [ day, 1, durationDay ],\n [ day, 2, 2 * durationDay ],\n [ week, 1, durationWeek ],\n [ month, 1, durationMonth ],\n [ month, 3, 3 * durationMonth ],\n [ year, 1, durationYear ]\n ];\n\n function tickFormat(date) {\n return (second(date) < date ? formatMillisecond\n : minute(date) < date ? formatSecond\n : hour(date) < date ? formatMinute\n : day(date) < date ? formatHour\n : month(date) < date ? (week(date) < date ? formatDay : formatWeek)\n : year(date) < date ? formatMonth\n : formatYear)(date);\n }\n\n function tickInterval(interval, start, stop) {\n if (interval == null) interval = 10;\n\n // If a desired tick count is specified, pick a reasonable tick interval\n // based on the extent of the domain and a rough estimate of tick size.\n // Otherwise, assume interval is already a time interval and use it.\n if (typeof interval === \"number\") {\n var target = Math.abs(stop - start) / interval,\n i = bisector(function(i) { return i[2]; }).right(tickIntervals, target),\n step;\n if (i === tickIntervals.length) {\n step = tickStep(start / durationYear, stop / durationYear, interval);\n interval = year;\n } else if (i) {\n i = tickIntervals[target / tickIntervals[i - 1][2] < tickIntervals[i][2] / target ? i - 1 : i];\n step = i[1];\n interval = i[0];\n } else {\n step = Math.max(tickStep(start, stop, interval), 1);\n interval = millisecond;\n }\n return interval.every(step);\n }\n\n return interval;\n }\n\n scale.invert = function(y) {\n return new Date(invert(y));\n };\n\n scale.domain = function(_) {\n return arguments.length ? domain(Array.from(_, number)) : domain().map(date);\n };\n\n scale.ticks = function(interval) {\n var d = domain(),\n t0 = d[0],\n t1 = d[d.length - 1],\n r = t1 < t0,\n t;\n if (r) t = t0, t0 = t1, t1 = t;\n t = tickInterval(interval, t0, t1);\n t = t ? t.range(t0, t1 + 1) : []; // inclusive stop\n return r ? t.reverse() : t;\n };\n\n scale.tickFormat = function(count, specifier) {\n return specifier == null ? tickFormat : format(specifier);\n };\n\n scale.nice = function(interval) {\n var d = domain();\n return (interval = tickInterval(interval, d[0], d[d.length - 1]))\n ? domain(nice(d, interval))\n : scale;\n };\n\n scale.copy = function() {\n return copy(scale, calendar(year, month, week, day, hour, minute, second, millisecond, format));\n };\n\n return scale;\n}\n\nexport default function() {\n return initRange.apply(calendar(timeYear, timeMonth, timeWeek, timeDay, timeHour, timeMinute, timeSecond, timeMillisecond, timeFormat).domain([new Date(2000, 0, 1), new Date(2000, 0, 2)]), arguments);\n}\n","export default function(domain, interval) {\n domain = domain.slice();\n\n var i0 = 0,\n i1 = domain.length - 1,\n x0 = domain[i0],\n x1 = domain[i1],\n t;\n\n if (x1 < x0) {\n t = i0, i0 = i1, i1 = t;\n t = x0, x0 = x1, x1 = t;\n }\n\n domain[i0] = interval.floor(x0);\n domain[i1] = interval.ceil(x1);\n return domain;\n}\n","function none() {}\n\nexport default function(selector) {\n return selector == null ? none : function() {\n return this.querySelector(selector);\n };\n}\n","function empty() {\n return [];\n}\n\nexport default function(selector) {\n return selector == null ? empty : function() {\n return this.querySelectorAll(selector);\n };\n}\n","export default function(update) {\n return new Array(update.length);\n}\n","import sparse from \"./sparse\";\nimport {Selection} from \"./index\";\n\nexport default function() {\n return new Selection(this._enter || this._groups.map(sparse), this._parents);\n}\n\nexport function EnterNode(parent, datum) {\n this.ownerDocument = parent.ownerDocument;\n this.namespaceURI = parent.namespaceURI;\n this._next = null;\n this._parent = parent;\n this.__data__ = datum;\n}\n\nEnterNode.prototype = {\n constructor: EnterNode,\n appendChild: function(child) { return this._parent.insertBefore(child, this._next); },\n insertBefore: function(child, next) { return this._parent.insertBefore(child, next); },\n querySelector: function(selector) { return this._parent.querySelector(selector); },\n querySelectorAll: function(selector) { return this._parent.querySelectorAll(selector); }\n};\n","import {Selection} from \"./index\";\nimport {EnterNode} from \"./enter\";\nimport constant from \"../constant\";\n\nvar keyPrefix = \"$\"; // Protect against keys like “__proto__”.\n\nfunction bindIndex(parent, group, enter, update, exit, data) {\n var i = 0,\n node,\n groupLength = group.length,\n dataLength = data.length;\n\n // Put any non-null nodes that fit into update.\n // Put any null nodes into enter.\n // Put any remaining data into enter.\n for (; i < dataLength; ++i) {\n if (node = group[i]) {\n node.__data__ = data[i];\n update[i] = node;\n } else {\n enter[i] = new EnterNode(parent, data[i]);\n }\n }\n\n // Put any non-null nodes that don’t fit into exit.\n for (; i < groupLength; ++i) {\n if (node = group[i]) {\n exit[i] = node;\n }\n }\n}\n\nfunction bindKey(parent, group, enter, update, exit, data, key) {\n var i,\n node,\n nodeByKeyValue = {},\n groupLength = group.length,\n dataLength = data.length,\n keyValues = new Array(groupLength),\n keyValue;\n\n // Compute the key for each node.\n // If multiple nodes have the same key, the duplicates are added to exit.\n for (i = 0; i < groupLength; ++i) {\n if (node = group[i]) {\n keyValues[i] = keyValue = keyPrefix + key.call(node, node.__data__, i, group);\n if (keyValue in nodeByKeyValue) {\n exit[i] = node;\n } else {\n nodeByKeyValue[keyValue] = node;\n }\n }\n }\n\n // Compute the key for each datum.\n // If there a node associated with this key, join and add it to update.\n // If there is not (or the key is a duplicate), add it to enter.\n for (i = 0; i < dataLength; ++i) {\n keyValue = keyPrefix + key.call(parent, data[i], i, data);\n if (node = nodeByKeyValue[keyValue]) {\n update[i] = node;\n node.__data__ = data[i];\n nodeByKeyValue[keyValue] = null;\n } else {\n enter[i] = new EnterNode(parent, data[i]);\n }\n }\n\n // Add any remaining nodes that were not bound to data to exit.\n for (i = 0; i < groupLength; ++i) {\n if ((node = group[i]) && (nodeByKeyValue[keyValues[i]] === node)) {\n exit[i] = node;\n }\n }\n}\n\nexport default function(value, key) {\n if (!value) {\n data = new Array(this.size()), j = -1;\n this.each(function(d) { data[++j] = d; });\n return data;\n }\n\n var bind = key ? bindKey : bindIndex,\n parents = this._parents,\n groups = this._groups;\n\n if (typeof value !== \"function\") value = constant(value);\n\n for (var m = groups.length, update = new Array(m), enter = new Array(m), exit = new Array(m), j = 0; j < m; ++j) {\n var parent = parents[j],\n group = groups[j],\n groupLength = group.length,\n data = value.call(parent, parent && parent.__data__, j, parents),\n dataLength = data.length,\n enterGroup = enter[j] = new Array(dataLength),\n updateGroup = update[j] = new Array(dataLength),\n exitGroup = exit[j] = new Array(groupLength);\n\n bind(parent, group, enterGroup, updateGroup, exitGroup, data, key);\n\n // Now connect the enter nodes to their following update node, such that\n // appendChild can insert the materialized enter node before this node,\n // rather than at the end of the parent node.\n for (var i0 = 0, i1 = 0, previous, next; i0 < dataLength; ++i0) {\n if (previous = enterGroup[i0]) {\n if (i0 >= i1) i1 = i0 + 1;\n while (!(next = updateGroup[i1]) && ++i1 < dataLength);\n previous._next = next || null;\n }\n }\n }\n\n update = new Selection(update, parents);\n update._enter = enter;\n update._exit = exit;\n return update;\n}\n","import {Selection} from \"./index\";\n\nexport default function(compare) {\n if (!compare) compare = ascending;\n\n function compareNode(a, b) {\n return a && b ? compare(a.__data__, b.__data__) : !a - !b;\n }\n\n for (var groups = this._groups, m = groups.length, sortgroups = new Array(m), j = 0; j < m; ++j) {\n for (var group = groups[j], n = group.length, sortgroup = sortgroups[j] = new Array(n), node, i = 0; i < n; ++i) {\n if (node = group[i]) {\n sortgroup[i] = node;\n }\n }\n sortgroup.sort(compareNode);\n }\n\n return new Selection(sortgroups, this._parents).order();\n}\n\nfunction ascending(a, b) {\n return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;\n}\n","export default function() {\n var callback = arguments[0];\n arguments[0] = this;\n callback.apply(null, arguments);\n return this;\n}\n","export var xhtml = \"http://www.w3.org/1999/xhtml\";\n\nexport default {\n svg: \"http://www.w3.org/2000/svg\",\n xhtml: xhtml,\n xlink: \"http://www.w3.org/1999/xlink\",\n xml: \"http://www.w3.org/XML/1998/namespace\",\n xmlns: \"http://www.w3.org/2000/xmlns/\"\n};\n","import namespaces from \"./namespaces\";\n\nexport default function(name) {\n var prefix = name += \"\", i = prefix.indexOf(\":\");\n if (i >= 0 && (prefix = name.slice(0, i)) !== \"xmlns\") name = name.slice(i + 1);\n return namespaces.hasOwnProperty(prefix) ? {space: namespaces[prefix], local: name} : name;\n}\n","import namespace from \"../namespace\";\n\nfunction attrRemove(name) {\n return function() {\n this.removeAttribute(name);\n };\n}\n\nfunction attrRemoveNS(fullname) {\n return function() {\n this.removeAttributeNS(fullname.space, fullname.local);\n };\n}\n\nfunction attrConstant(name, value) {\n return function() {\n this.setAttribute(name, value);\n };\n}\n\nfunction attrConstantNS(fullname, value) {\n return function() {\n this.setAttributeNS(fullname.space, fullname.local, value);\n };\n}\n\nfunction attrFunction(name, value) {\n return function() {\n var v = value.apply(this, arguments);\n if (v == null) this.removeAttribute(name);\n else this.setAttribute(name, v);\n };\n}\n\nfunction attrFunctionNS(fullname, value) {\n return function() {\n var v = value.apply(this, arguments);\n if (v == null) this.removeAttributeNS(fullname.space, fullname.local);\n else this.setAttributeNS(fullname.space, fullname.local, v);\n };\n}\n\nexport default function(name, value) {\n var fullname = namespace(name);\n\n if (arguments.length < 2) {\n var node = this.node();\n return fullname.local\n ? node.getAttributeNS(fullname.space, fullname.local)\n : node.getAttribute(fullname);\n }\n\n return this.each((value == null\n ? (fullname.local ? attrRemoveNS : attrRemove) : (typeof value === \"function\"\n ? (fullname.local ? attrFunctionNS : attrFunction)\n : (fullname.local ? attrConstantNS : attrConstant)))(fullname, value));\n}\n","export default function(node) {\n return (node.ownerDocument && node.ownerDocument.defaultView) // node is a Node\n || (node.document && node) // node is a Window\n || node.defaultView; // node is a Document\n}\n","import defaultView from \"../window\";\n\nfunction styleRemove(name) {\n return function() {\n this.style.removeProperty(name);\n };\n}\n\nfunction styleConstant(name, value, priority) {\n return function() {\n this.style.setProperty(name, value, priority);\n };\n}\n\nfunction styleFunction(name, value, priority) {\n return function() {\n var v = value.apply(this, arguments);\n if (v == null) this.style.removeProperty(name);\n else this.style.setProperty(name, v, priority);\n };\n}\n\nexport default function(name, value, priority) {\n return arguments.length > 1\n ? this.each((value == null\n ? styleRemove : typeof value === \"function\"\n ? styleFunction\n : styleConstant)(name, value, priority == null ? \"\" : priority))\n : styleValue(this.node(), name);\n}\n\nexport function styleValue(node, name) {\n return node.style.getPropertyValue(name)\n || defaultView(node).getComputedStyle(node, null).getPropertyValue(name);\n}\n","function propertyRemove(name) {\n return function() {\n delete this[name];\n };\n}\n\nfunction propertyConstant(name, value) {\n return function() {\n this[name] = value;\n };\n}\n\nfunction propertyFunction(name, value) {\n return function() {\n var v = value.apply(this, arguments);\n if (v == null) delete this[name];\n else this[name] = v;\n };\n}\n\nexport default function(name, value) {\n return arguments.length > 1\n ? this.each((value == null\n ? propertyRemove : typeof value === \"function\"\n ? propertyFunction\n : propertyConstant)(name, value))\n : this.node()[name];\n}\n","function classArray(string) {\n return string.trim().split(/^|\\s+/);\n}\n\nfunction classList(node) {\n return node.classList || new ClassList(node);\n}\n\nfunction ClassList(node) {\n this._node = node;\n this._names = classArray(node.getAttribute(\"class\") || \"\");\n}\n\nClassList.prototype = {\n add: function(name) {\n var i = this._names.indexOf(name);\n if (i < 0) {\n this._names.push(name);\n this._node.setAttribute(\"class\", this._names.join(\" \"));\n }\n },\n remove: function(name) {\n var i = this._names.indexOf(name);\n if (i >= 0) {\n this._names.splice(i, 1);\n this._node.setAttribute(\"class\", this._names.join(\" \"));\n }\n },\n contains: function(name) {\n return this._names.indexOf(name) >= 0;\n }\n};\n\nfunction classedAdd(node, names) {\n var list = classList(node), i = -1, n = names.length;\n while (++i < n) list.add(names[i]);\n}\n\nfunction classedRemove(node, names) {\n var list = classList(node), i = -1, n = names.length;\n while (++i < n) list.remove(names[i]);\n}\n\nfunction classedTrue(names) {\n return function() {\n classedAdd(this, names);\n };\n}\n\nfunction classedFalse(names) {\n return function() {\n classedRemove(this, names);\n };\n}\n\nfunction classedFunction(names, value) {\n return function() {\n (value.apply(this, arguments) ? classedAdd : classedRemove)(this, names);\n };\n}\n\nexport default function(name, value) {\n var names = classArray(name + \"\");\n\n if (arguments.length < 2) {\n var list = classList(this.node()), i = -1, n = names.length;\n while (++i < n) if (!list.contains(names[i])) return false;\n return true;\n }\n\n return this.each((typeof value === \"function\"\n ? classedFunction : value\n ? classedTrue\n : classedFalse)(names, value));\n}\n","function textRemove() {\n this.textContent = \"\";\n}\n\nfunction textConstant(value) {\n return function() {\n this.textContent = value;\n };\n}\n\nfunction textFunction(value) {\n return function() {\n var v = value.apply(this, arguments);\n this.textContent = v == null ? \"\" : v;\n };\n}\n\nexport default function(value) {\n return arguments.length\n ? this.each(value == null\n ? textRemove : (typeof value === \"function\"\n ? textFunction\n : textConstant)(value))\n : this.node().textContent;\n}\n","function htmlRemove() {\n this.innerHTML = \"\";\n}\n\nfunction htmlConstant(value) {\n return function() {\n this.innerHTML = value;\n };\n}\n\nfunction htmlFunction(value) {\n return function() {\n var v = value.apply(this, arguments);\n this.innerHTML = v == null ? \"\" : v;\n };\n}\n\nexport default function(value) {\n return arguments.length\n ? this.each(value == null\n ? htmlRemove : (typeof value === \"function\"\n ? htmlFunction\n : htmlConstant)(value))\n : this.node().innerHTML;\n}\n","function raise() {\n if (this.nextSibling) this.parentNode.appendChild(this);\n}\n\nexport default function() {\n return this.each(raise);\n}\n","function lower() {\n if (this.previousSibling) this.parentNode.insertBefore(this, this.parentNode.firstChild);\n}\n\nexport default function() {\n return this.each(lower);\n}\n","import namespace from \"./namespace\";\nimport {xhtml} from \"./namespaces\";\n\nfunction creatorInherit(name) {\n return function() {\n var document = this.ownerDocument,\n uri = this.namespaceURI;\n return uri === xhtml && document.documentElement.namespaceURI === xhtml\n ? document.createElement(name)\n : document.createElementNS(uri, name);\n };\n}\n\nfunction creatorFixed(fullname) {\n return function() {\n return this.ownerDocument.createElementNS(fullname.space, fullname.local);\n };\n}\n\nexport default function(name) {\n var fullname = namespace(name);\n return (fullname.local\n ? creatorFixed\n : creatorInherit)(fullname);\n}\n","import creator from \"../creator\";\nimport selector from \"../selector\";\n\nfunction constantNull() {\n return null;\n}\n\nexport default function(name, before) {\n var create = typeof name === \"function\" ? name : creator(name),\n select = before == null ? constantNull : typeof before === \"function\" ? before : selector(before);\n return this.select(function() {\n return this.insertBefore(create.apply(this, arguments), select.apply(this, arguments) || null);\n });\n}\n","function remove() {\n var parent = this.parentNode;\n if (parent) parent.removeChild(this);\n}\n\nexport default function() {\n return this.each(remove);\n}\n","function selection_cloneShallow() {\n var clone = this.cloneNode(false), parent = this.parentNode;\n return parent ? parent.insertBefore(clone, this.nextSibling) : clone;\n}\n\nfunction selection_cloneDeep() {\n var clone = this.cloneNode(true), parent = this.parentNode;\n return parent ? parent.insertBefore(clone, this.nextSibling) : clone;\n}\n\nexport default function(deep) {\n return this.select(deep ? selection_cloneDeep : selection_cloneShallow);\n}\n","var filterEvents = {};\n\nexport var event = null;\n\nif (typeof document !== \"undefined\") {\n var element = document.documentElement;\n if (!(\"onmouseenter\" in element)) {\n filterEvents = {mouseenter: \"mouseover\", mouseleave: \"mouseout\"};\n }\n}\n\nfunction filterContextListener(listener, index, group) {\n listener = contextListener(listener, index, group);\n return function(event) {\n var related = event.relatedTarget;\n if (!related || (related !== this && !(related.compareDocumentPosition(this) & 8))) {\n listener.call(this, event);\n }\n };\n}\n\nfunction contextListener(listener, index, group) {\n return function(event1) {\n var event0 = event; // Events can be reentrant (e.g., focus).\n event = event1;\n try {\n listener.call(this, this.__data__, index, group);\n } finally {\n event = event0;\n }\n };\n}\n\nfunction parseTypenames(typenames) {\n return typenames.trim().split(/^|\\s+/).map(function(t) {\n var name = \"\", i = t.indexOf(\".\");\n if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i);\n return {type: t, name: name};\n });\n}\n\nfunction onRemove(typename) {\n return function() {\n var on = this.__on;\n if (!on) return;\n for (var j = 0, i = -1, m = on.length, o; j < m; ++j) {\n if (o = on[j], (!typename.type || o.type === typename.type) && o.name === typename.name) {\n this.removeEventListener(o.type, o.listener, o.capture);\n } else {\n on[++i] = o;\n }\n }\n if (++i) on.length = i;\n else delete this.__on;\n };\n}\n\nfunction onAdd(typename, value, capture) {\n var wrap = filterEvents.hasOwnProperty(typename.type) ? filterContextListener : contextListener;\n return function(d, i, group) {\n var on = this.__on, o, listener = wrap(value, i, group);\n if (on) for (var j = 0, m = on.length; j < m; ++j) {\n if ((o = on[j]).type === typename.type && o.name === typename.name) {\n this.removeEventListener(o.type, o.listener, o.capture);\n this.addEventListener(o.type, o.listener = listener, o.capture = capture);\n o.value = value;\n return;\n }\n }\n this.addEventListener(typename.type, listener, capture);\n o = {type: typename.type, name: typename.name, value: value, listener: listener, capture: capture};\n if (!on) this.__on = [o];\n else on.push(o);\n };\n}\n\nexport default function(typename, value, capture) {\n var typenames = parseTypenames(typename + \"\"), i, n = typenames.length, t;\n\n if (arguments.length < 2) {\n var on = this.node().__on;\n if (on) for (var j = 0, m = on.length, o; j < m; ++j) {\n for (i = 0, o = on[j]; i < n; ++i) {\n if ((t = typenames[i]).type === o.type && t.name === o.name) {\n return o.value;\n }\n }\n }\n return;\n }\n\n on = value ? onAdd : onRemove;\n if (capture == null) capture = false;\n for (i = 0; i < n; ++i) this.each(on(typenames[i], value, capture));\n return this;\n}\n\nexport function customEvent(event1, listener, that, args) {\n var event0 = event;\n event1.sourceEvent = event;\n event = event1;\n try {\n return listener.apply(that, args);\n } finally {\n event = event0;\n }\n}\n","import defaultView from \"../window\";\n\nfunction dispatchEvent(node, type, params) {\n var window = defaultView(node),\n event = window.CustomEvent;\n\n if (typeof event === \"function\") {\n event = new event(type, params);\n } else {\n event = window.document.createEvent(\"Event\");\n if (params) event.initEvent(type, params.bubbles, params.cancelable), event.detail = params.detail;\n else event.initEvent(type, false, false);\n }\n\n node.dispatchEvent(event);\n}\n\nfunction dispatchConstant(type, params) {\n return function() {\n return dispatchEvent(this, type, params);\n };\n}\n\nfunction dispatchFunction(type, params) {\n return function() {\n return dispatchEvent(this, type, params.apply(this, arguments));\n };\n}\n\nexport default function(type, params) {\n return this.each((typeof params === \"function\"\n ? dispatchFunction\n : dispatchConstant)(type, params));\n}\n","import selection_select from \"./select\";\nimport selection_selectAll from \"./selectAll\";\nimport selection_filter from \"./filter\";\nimport selection_data from \"./data\";\nimport selection_enter from \"./enter\";\nimport selection_exit from \"./exit\";\nimport selection_join from \"./join\";\nimport selection_merge from \"./merge\";\nimport selection_order from \"./order\";\nimport selection_sort from \"./sort\";\nimport selection_call from \"./call\";\nimport selection_nodes from \"./nodes\";\nimport selection_node from \"./node\";\nimport selection_size from \"./size\";\nimport selection_empty from \"./empty\";\nimport selection_each from \"./each\";\nimport selection_attr from \"./attr\";\nimport selection_style from \"./style\";\nimport selection_property from \"./property\";\nimport selection_classed from \"./classed\";\nimport selection_text from \"./text\";\nimport selection_html from \"./html\";\nimport selection_raise from \"./raise\";\nimport selection_lower from \"./lower\";\nimport selection_append from \"./append\";\nimport selection_insert from \"./insert\";\nimport selection_remove from \"./remove\";\nimport selection_clone from \"./clone\";\nimport selection_datum from \"./datum\";\nimport selection_on from \"./on\";\nimport selection_dispatch from \"./dispatch\";\n\nexport var root = [null];\n\nexport function Selection(groups, parents) {\n this._groups = groups;\n this._parents = parents;\n}\n\nfunction selection() {\n return new Selection([[document.documentElement]], root);\n}\n\nSelection.prototype = selection.prototype = {\n constructor: Selection,\n select: selection_select,\n selectAll: selection_selectAll,\n filter: selection_filter,\n data: selection_data,\n enter: selection_enter,\n exit: selection_exit,\n join: selection_join,\n merge: selection_merge,\n order: selection_order,\n sort: selection_sort,\n call: selection_call,\n nodes: selection_nodes,\n node: selection_node,\n size: selection_size,\n empty: selection_empty,\n each: selection_each,\n attr: selection_attr,\n style: selection_style,\n property: selection_property,\n classed: selection_classed,\n text: selection_text,\n html: selection_html,\n raise: selection_raise,\n lower: selection_lower,\n append: selection_append,\n insert: selection_insert,\n remove: selection_remove,\n clone: selection_clone,\n datum: selection_datum,\n on: selection_on,\n dispatch: selection_dispatch\n};\n\nexport default selection;\n","import {Selection} from \"./index\";\nimport selector from \"../selector\";\n\nexport default function(select) {\n if (typeof select !== \"function\") select = selector(select);\n\n for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {\n for (var group = groups[j], n = group.length, subgroup = subgroups[j] = new Array(n), node, subnode, i = 0; i < n; ++i) {\n if ((node = group[i]) && (subnode = select.call(node, node.__data__, i, group))) {\n if (\"__data__\" in node) subnode.__data__ = node.__data__;\n subgroup[i] = subnode;\n }\n }\n }\n\n return new Selection(subgroups, this._parents);\n}\n","import {Selection} from \"./index\";\nimport selectorAll from \"../selectorAll\";\n\nexport default function(select) {\n if (typeof select !== \"function\") select = selectorAll(select);\n\n for (var groups = this._groups, m = groups.length, subgroups = [], parents = [], j = 0; j < m; ++j) {\n for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) {\n if (node = group[i]) {\n subgroups.push(select.call(node, node.__data__, i, group));\n parents.push(node);\n }\n }\n }\n\n return new Selection(subgroups, parents);\n}\n","import {Selection} from \"./index\";\nimport matcher from \"../matcher\";\n\nexport default function(match) {\n if (typeof match !== \"function\") match = matcher(match);\n\n for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {\n for (var group = groups[j], n = group.length, subgroup = subgroups[j] = [], node, i = 0; i < n; ++i) {\n if ((node = group[i]) && match.call(node, node.__data__, i, group)) {\n subgroup.push(node);\n }\n }\n }\n\n return new Selection(subgroups, this._parents);\n}\n","export default function(selector) {\n return function() {\n return this.matches(selector);\n };\n}\n","export default function(x) {\n return function() {\n return x;\n };\n}\n","import sparse from \"./sparse\";\nimport {Selection} from \"./index\";\n\nexport default function() {\n return new Selection(this._exit || this._groups.map(sparse), this._parents);\n}\n","export default function(onenter, onupdate, onexit) {\n var enter = this.enter(), update = this, exit = this.exit();\n enter = typeof onenter === \"function\" ? onenter(enter) : enter.append(onenter + \"\");\n if (onupdate != null) update = onupdate(update);\n if (onexit == null) exit.remove(); else onexit(exit);\n return enter && update ? enter.merge(update).order() : update;\n}\n","import {Selection} from \"./index\";\n\nexport default function(selection) {\n\n for (var groups0 = this._groups, groups1 = selection._groups, m0 = groups0.length, m1 = groups1.length, m = Math.min(m0, m1), merges = new Array(m0), j = 0; j < m; ++j) {\n for (var group0 = groups0[j], group1 = groups1[j], n = group0.length, merge = merges[j] = new Array(n), node, i = 0; i < n; ++i) {\n if (node = group0[i] || group1[i]) {\n merge[i] = node;\n }\n }\n }\n\n for (; j < m0; ++j) {\n merges[j] = groups0[j];\n }\n\n return new Selection(merges, this._parents);\n}\n","export default function() {\n\n for (var groups = this._groups, j = -1, m = groups.length; ++j < m;) {\n for (var group = groups[j], i = group.length - 1, next = group[i], node; --i >= 0;) {\n if (node = group[i]) {\n if (next && node.compareDocumentPosition(next) ^ 4) next.parentNode.insertBefore(node, next);\n next = node;\n }\n }\n }\n\n return this;\n}\n","export default function() {\n var nodes = new Array(this.size()), i = -1;\n this.each(function() { nodes[++i] = this; });\n return nodes;\n}\n","export default function() {\n\n for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) {\n for (var group = groups[j], i = 0, n = group.length; i < n; ++i) {\n var node = group[i];\n if (node) return node;\n }\n }\n\n return null;\n}\n","export default function() {\n var size = 0;\n this.each(function() { ++size; });\n return size;\n}\n","export default function() {\n return !this.node();\n}\n","export default function(callback) {\n\n for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) {\n for (var group = groups[j], i = 0, n = group.length, node; i < n; ++i) {\n if (node = group[i]) callback.call(node, node.__data__, i, group);\n }\n }\n\n return this;\n}\n","import creator from \"../creator\";\n\nexport default function(name) {\n var create = typeof name === \"function\" ? name : creator(name);\n return this.select(function() {\n return this.appendChild(create.apply(this, arguments));\n });\n}\n","export default function(value) {\n return arguments.length\n ? this.property(\"__data__\", value)\n : this.node().__data__;\n}\n","import {Selection, root} from \"./selection/index\";\n\nexport default function(selector) {\n return typeof selector === \"string\"\n ? new Selection([[document.querySelector(selector)]], [document.documentElement])\n : new Selection([[selector]], root);\n}\n","export default function(x) {\n return function constant() {\n return x;\n };\n}\n","function Linear(context) {\n this._context = context;\n}\n\nLinear.prototype = {\n areaStart: function() {\n this._line = 0;\n },\n areaEnd: function() {\n this._line = NaN;\n },\n lineStart: function() {\n this._point = 0;\n },\n lineEnd: function() {\n if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();\n this._line = 1 - this._line;\n },\n point: function(x, y) {\n x = +x, y = +y;\n switch (this._point) {\n case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;\n case 1: this._point = 2; // proceed\n default: this._context.lineTo(x, y); break;\n }\n }\n};\n\nexport default function(context) {\n return new Linear(context);\n}\n","export function x(p) {\n return p[0];\n}\n\nexport function y(p) {\n return p[1];\n}\n","import {path} from \"d3-path\";\nimport constant from \"./constant.js\";\nimport curveLinear from \"./curve/linear.js\";\nimport {x as pointX, y as pointY} from \"./point.js\";\n\nexport default function() {\n var x = pointX,\n y = pointY,\n defined = constant(true),\n context = null,\n curve = curveLinear,\n output = null;\n\n function line(data) {\n var i,\n n = data.length,\n d,\n defined0 = false,\n buffer;\n\n if (context == null) output = curve(buffer = path());\n\n for (i = 0; i <= n; ++i) {\n if (!(i < n && defined(d = data[i], i, data)) === defined0) {\n if (defined0 = !defined0) output.lineStart();\n else output.lineEnd();\n }\n if (defined0) output.point(+x(d, i, data), +y(d, i, data));\n }\n\n if (buffer) return output = null, buffer + \"\" || null;\n }\n\n line.x = function(_) {\n return arguments.length ? (x = typeof _ === \"function\" ? _ : constant(+_), line) : x;\n };\n\n line.y = function(_) {\n return arguments.length ? (y = typeof _ === \"function\" ? _ : constant(+_), line) : y;\n };\n\n line.defined = function(_) {\n return arguments.length ? (defined = typeof _ === \"function\" ? _ : constant(!!_), line) : defined;\n };\n\n line.curve = function(_) {\n return arguments.length ? (curve = _, context != null && (output = curve(context)), line) : curve;\n };\n\n line.context = function(_) {\n return arguments.length ? (_ == null ? context = output = null : output = curve(context = _), line) : context;\n };\n\n return line;\n}\n","import { ascending, extent, max, min, range, descending } from 'd3-array';\nimport { axisBottom, axisLeft } from 'd3-axis';\nimport { entries, nest} from 'd3-collection';\nimport { format, formatLocale } from 'd3-format';\nimport { path } from 'd3-path';\nimport { scaleTime,scaleLinear, scaleSqrt, scaleOrdinal } from 'd3-scale';\nimport { select, selectAll } from 'd3-selection';\nimport { line } from 'd3-shape';\nimport { timeYear } from 'd3-time';\nimport { timeParse, timeFormat }from 'd3-time-format';\nimport tip from 'd3-tip';\n\nexport default {\n ascending,\n axisBottom,\n axisLeft,\n descending,\n entries,\n extent,\n format,\n formatLocale,\n line,\n max,\n min,\n nest,\n path,\n range,\n scaleOrdinal,\n scaleLinear,\n scaleSqrt,\n scaleTime,\n select,\n selectAll,\n timeFormat,\n timeParse,\n timeYear,\n tip\n};","export default function(a, b) {\n return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;\n}\n","export default function(map) {\n var entries = [];\n for (var key in map) entries.push({key: key, value: map[key]});\n return entries;\n}\n","export default function(values, valueof) {\n let min;\n let max;\n if (valueof === undefined) {\n for (const value of values) {\n if (value != null) {\n if (min === undefined) {\n if (value >= value) min = max = value;\n } else {\n if (min > value) min = value;\n if (max < value) max = value;\n }\n }\n }\n } else {\n let index = -1;\n for (let value of values) {\n if ((value = valueof(value, ++index, values)) != null) {\n if (min === undefined) {\n if (value >= value) min = max = value;\n } else {\n if (min > value) min = value;\n if (max < value) max = value;\n }\n }\n }\n }\n return [min, max];\n}\n","export default function max(values, valueof) {\n let max;\n if (valueof === undefined) {\n for (const value of values) {\n if (value != null\n && (max < value || (max === undefined && value >= value))) {\n max = value;\n }\n }\n } else {\n let index = -1;\n for (let value of values) {\n if ((value = valueof(value, ++index, values)) != null\n && (max < value || (max === undefined && value >= value))) {\n max = value;\n }\n }\n }\n return max;\n}\n","export default function min(values, valueof) {\n let min;\n if (valueof === undefined) {\n for (const value of values) {\n if (value != null\n && (min > value || (min === undefined && value >= value))) {\n min = value;\n }\n }\n } else {\n let index = -1;\n for (let value of values) {\n if ((value = valueof(value, ++index, values)) != null\n && (min > value || (min === undefined && value >= value))) {\n min = value;\n }\n }\n }\n return min;\n}\n","import {Selection, root} from \"./selection/index\";\n\nexport default function(selector) {\n return typeof selector === \"string\"\n ? new Selection([document.querySelectorAll(selector)], [document.documentElement])\n : new Selection([selector == null ? [] : selector], root);\n}\n","/**\n * d3.tip\n * Copyright (c) 2013-2017 Justin Palmer\n *\n * Tooltips for d3.js SVG visualizations\n */\n// eslint-disable-next-line no-extra-semi\nimport { map } from 'd3-collection'\nimport { selection, select } from 'd3-selection'\n// Public - constructs a new tooltip\n//\n// Returns a tip\nexport default function() {\n var direction = d3TipDirection,\n offset = d3TipOffset,\n html = d3TipHTML,\n rootElement = document.body,\n node = initNode(),\n svg = null,\n point = null,\n target = null\n\n function tip(vis) {\n svg = getSVGNode(vis)\n if (!svg) return\n point = svg.createSVGPoint()\n rootElement.appendChild(node)\n }\n\n // Public - show the tooltip on the screen\n //\n // Returns a tip\n tip.show = function() {\n var args = Array.prototype.slice.call(arguments)\n if (args[args.length - 1] instanceof SVGElement) target = args.pop()\n\n var content = html.apply(this, args),\n poffset = offset.apply(this, args),\n dir = direction.apply(this, args),\n nodel = getNodeEl(),\n i = directions.length,\n coords,\n scrollTop = document.documentElement.scrollTop ||\n rootElement.scrollTop,\n scrollLeft = document.documentElement.scrollLeft ||\n rootElement.scrollLeft\n\n nodel.html(content)\n .style('opacity', 1).style('pointer-events', 'all')\n\n while (i--) nodel.classed(directions[i], false)\n coords = directionCallbacks.get(dir).apply(this)\n nodel.classed(dir, true)\n .style('top', (coords.top + poffset[0]) + scrollTop + 'px')\n .style('left', (coords.left + poffset[1]) + scrollLeft + 'px')\n\n return tip\n }\n\n // Public - hide the tooltip\n //\n // Returns a tip\n tip.hide = function() {\n var nodel = getNodeEl()\n nodel.style('opacity', 0).style('pointer-events', 'none')\n return tip\n }\n\n // Public: Proxy attr calls to the d3 tip container.\n // Sets or gets attribute value.\n //\n // n - name of the attribute\n // v - value of the attribute\n //\n // Returns tip or attribute value\n // eslint-disable-next-line no-unused-vars\n tip.attr = function(n, v) {\n if (arguments.length < 2 && typeof n === 'string') {\n return getNodeEl().attr(n)\n }\n\n var args = Array.prototype.slice.call(arguments)\n selection.prototype.attr.apply(getNodeEl(), args)\n return tip\n }\n\n // Public: Proxy style calls to the d3 tip container.\n // Sets or gets a style value.\n //\n // n - name of the property\n // v - value of the property\n //\n // Returns tip or style property value\n // eslint-disable-next-line no-unused-vars\n tip.style = function(n, v) {\n if (arguments.length < 2 && typeof n === 'string') {\n return getNodeEl().style(n)\n }\n\n var args = Array.prototype.slice.call(arguments)\n selection.prototype.style.apply(getNodeEl(), args)\n return tip\n }\n\n // Public: Set or get the direction of the tooltip\n //\n // v - One of n(north), s(south), e(east), or w(west), nw(northwest),\n // sw(southwest), ne(northeast) or se(southeast)\n //\n // Returns tip or direction\n tip.direction = function(v) {\n if (!arguments.length) return direction\n direction = v == null ? v : functor(v)\n\n return tip\n }\n\n // Public: Sets or gets the offset of the tip\n //\n // v - Array of [x, y] offset\n //\n // Returns offset or\n tip.offset = function(v) {\n if (!arguments.length) return offset\n offset = v == null ? v : functor(v)\n\n return tip\n }\n\n // Public: sets or gets the html value of the tooltip\n //\n // v - String value of the tip\n //\n // Returns html value or tip\n tip.html = function(v) {\n if (!arguments.length) return html\n html = v == null ? v : functor(v)\n\n return tip\n }\n\n // Public: sets or gets the root element anchor of the tooltip\n //\n // v - root element of the tooltip\n //\n // Returns root node of tip\n tip.rootElement = function(v) {\n if (!arguments.length) return rootElement\n rootElement = v == null ? v : functor(v)\n\n return tip\n }\n\n // Public: destroys the tooltip and removes it from the DOM\n //\n // Returns a tip\n tip.destroy = function() {\n if (node) {\n getNodeEl().remove()\n node = null\n }\n return tip\n }\n\n function d3TipDirection() { return 'n' }\n function d3TipOffset() { return [0, 0] }\n function d3TipHTML() { return ' ' }\n\n var directionCallbacks = map({\n n: directionNorth,\n s: directionSouth,\n e: directionEast,\n w: directionWest,\n nw: directionNorthWest,\n ne: directionNorthEast,\n sw: directionSouthWest,\n se: directionSouthEast\n }),\n directions = directionCallbacks.keys()\n\n function directionNorth() {\n var bbox = getScreenBBox(this)\n return {\n top: bbox.n.y - node.offsetHeight,\n left: bbox.n.x - node.offsetWidth / 2\n }\n }\n\n function directionSouth() {\n var bbox = getScreenBBox(this)\n return {\n top: bbox.s.y,\n left: bbox.s.x - node.offsetWidth / 2\n }\n }\n\n function directionEast() {\n var bbox = getScreenBBox(this)\n return {\n top: bbox.e.y - node.offsetHeight / 2,\n left: bbox.e.x\n }\n }\n\n function directionWest() {\n var bbox = getScreenBBox(this)\n return {\n top: bbox.w.y - node.offsetHeight / 2,\n left: bbox.w.x - node.offsetWidth\n }\n }\n\n function directionNorthWest() {\n var bbox = getScreenBBox(this)\n return {\n top: bbox.nw.y - node.offsetHeight,\n left: bbox.nw.x - node.offsetWidth\n }\n }\n\n function directionNorthEast() {\n var bbox = getScreenBBox(this)\n return {\n top: bbox.ne.y - node.offsetHeight,\n left: bbox.ne.x\n }\n }\n\n function directionSouthWest() {\n var bbox = getScreenBBox(this)\n return {\n top: bbox.sw.y,\n left: bbox.sw.x - node.offsetWidth\n }\n }\n\n function directionSouthEast() {\n var bbox = getScreenBBox(this)\n return {\n top: bbox.se.y,\n left: bbox.se.x\n }\n }\n\n function initNode() {\n var div = select(document.createElement('div'))\n div\n .style('position', 'absolute')\n .style('top', 0)\n .style('opacity', 0)\n .style('pointer-events', 'none')\n .style('box-sizing', 'border-box')\n\n return div.node()\n }\n\n function getSVGNode(element) {\n var svgNode = element.node()\n if (!svgNode) return null\n if (svgNode.tagName.toLowerCase() === 'svg') return svgNode\n return svgNode.ownerSVGElement\n }\n\n function getNodeEl() {\n if (node == null) {\n node = initNode()\n // re-add node to DOM\n rootElement.appendChild(node)\n }\n return select(node)\n }\n\n // Private - gets the screen coordinates of a shape\n //\n // Given a shape on the screen, will return an SVGPoint for the directions\n // n(north), s(south), e(east), w(west), ne(northeast), se(southeast),\n // nw(northwest), sw(southwest).\n //\n // +-+-+\n // | |\n // + +\n // | |\n // +-+-+\n //\n // Returns an Object {n, s, e, w, nw, sw, ne, se}\n function getScreenBBox(targetShape) {\n var targetel = target || targetShape\n\n while (targetel.getScreenCTM == null && targetel.parentNode != null) {\n targetel = targetel.parentNode\n }\n\n var bbox = {},\n matrix = targetel.getScreenCTM(),\n tbbox = targetel.getBBox(),\n width = tbbox.width,\n height = tbbox.height,\n x = tbbox.x,\n y = tbbox.y\n\n point.x = x\n point.y = y\n bbox.nw = point.matrixTransform(matrix)\n point.x += width\n bbox.ne = point.matrixTransform(matrix)\n point.y += height\n bbox.se = point.matrixTransform(matrix)\n point.x -= width\n bbox.sw = point.matrixTransform(matrix)\n point.y -= height / 2\n bbox.w = point.matrixTransform(matrix)\n point.x += width\n bbox.e = point.matrixTransform(matrix)\n point.x -= width / 2\n point.y -= height / 2\n bbox.n = point.matrixTransform(matrix)\n point.y += height\n bbox.s = point.matrixTransform(matrix)\n\n return bbox\n }\n\n // Private - replace D3JS 3.X d3.functor() function\n function functor(v) {\n return typeof v === 'function' ? v : function() {\n return v\n }\n }\n\n return tip\n}\n","/* global BUILDTYPE */\n\nimport d3 from './d3-importer.js';\nimport data from './data/countypopdesign.csv';\nimport './css/styles.scss';\nimport intro from './intro.html';\n\n\nif ( BUILDTYPE != 'production' ) {\n document.querySelector('.js-intro-section').insertAdjacentHTML('afterbegin', intro);\n}\n\nfunction sortByType(a,b){\n return a.countytype - b.countytype;\n}\n\nconst startYear = 2010;\nconst endYear = 2019;\n\nconst countyTypes = [0,1,2,3].reverse();\n\nconst years = d3.range(startYear, endYear).concat(endYear);\n\nconst nestedData = d3.nest().key(d => d.stname).entries(data.sort(sortByType));\n\nconst margin = {\n top: 30,\n right: 12,\n bottom: 0,\n left: 8\n}\n\nconst viewBoxHeight = 69;\n\nconst height = viewBoxHeight - margin.top - margin.bottom;\nconst width = 100 - margin.left - margin.right;\n\nconst yScale = d3.scaleLinear().range([height, 0]).domain([-0.0463 * 3, 0.0463 * 3]);\nconst xScale = d3.scaleLinear().range([0, width]).domain([startYear, endYear]);\n\nconst tip = d3.tip()\n .attr('class', 'd3-tip')\n .offset([-10,0])\n .html(function(d) { return `${d.x} | ${d3.format(',')(d.value)}`});\n\n/*const mouseoverEvent = new MouseEvent('mouseover', {\n view: window,\n bubbles: true,\n cancelable: true\n });\nconst mouseoutEvent = new MouseEvent('mouseout', {\n view: window,\n bubbles: true,\n cancelable: true\n });\n*/\nconst d = document.createEvent.bind(document); // need to nind to document to avoid some errors\nconst mouseoverEvent = d('Event'); // using old API instead of event constructor to support IE\nmouseoverEvent.initEvent('mouseover', true, true);\n\nconst mouseoutEvent = d('Event'); // using old API instead of event constructor to support IE\nmouseoutEvent.initEvent('mouseout', true, true);\n\nd3.formatLocale({\n decimal: '.',\n thousands: ',',\n grouping: [3],\n currency: ['$', '']\n});\n\nconst values = [];\ndata.forEach(v => {\n years.forEach(year => {\n values.push((v['popestimate' + year] - v['popestimate' + years[0]]) / v['popestimate' + years[0]]);\n });\n});\n\n//const extent = d3.extent(values);\n//const maxAbs = Math.max(...extent.map(d => Math.abs(d)));\n//STDEV == 0.0463\n//const yScale = d3.scaleLinear().range([height, 0]).domain([0 - maxAbs, maxAbs]);\n//const yAxisScale = d3.scaleLinear().range([height * 0.58, height * 0.43]).domain([0 - maxAbs, maxAbs]);\n\n\nvar valueline = d3.line()\n .x(d => {\n return xScale(d.x);\n })\n .y(d => {\n return yScale(d.y);\n });\n\nvar _svgs = d3.select('#graph-container')\n .selectAll('svg')\n .data(nestedData)\n .enter().append('svg')\n .attr('viewBox', '0 0 100 ' + viewBoxHeight)\n .attr('focusable', false)\n // .attr('width', '100%')\n .attr('xmlns', 'http://www.w3.org/2000/svg')\n .attr('version', '1.1');\n\n_svgs.append('defs')\n .append('linearGradient')\n .attr('id','gradient-1')\n .attr('x1', 0)\n .attr('x2', 0)\n .attr('y1', 0)\n .attr('y2', 1)\n .html(`