0313c03ef89d0446a4edd70242d04ac0.json

{"ast":null,"code":"import { ascending, bisect, quantile as threshold } from \"d3-array\";\nimport { slice } from \"./array\";\nimport { initRange } from \"./init\";\nexport default function quantile() {\n  var domain = [],\n      range = [],\n      thresholds = [],\n      unknown;\n\n  function rescale() {\n    var i = 0,\n        n = Math.max(1, range.length);\n    thresholds = new Array(n - 1);\n\n    while (++i < n) thresholds[i - 1] = threshold(domain, i / n);\n\n    return scale;\n  }\n\n  function scale(x) {\n    return isNaN(x = +x) ? unknown : range[bisect(thresholds, x)];\n  }\n\n  scale.invertExtent = function (y) {\n    var i = range.indexOf(y);\n    return i < 0 ? [NaN, NaN] : [i > 0 ? thresholds[i - 1] : domain[0], i < thresholds.length ? thresholds[i] : domain[domain.length - 1]];\n  };\n\n  scale.domain = function (_) {\n    if (!arguments.length) return domain.slice();\n    domain = [];\n\n    for (var i = 0, n = _.length, d; i < n; ++i) if (d = _[i], d != null && !isNaN(d = +d)) domain.push(d);\n\n    domain.sort(ascending);\n    return rescale();\n  };\n\n  scale.range = function (_) {\n    return arguments.length ? (range = slice.call(_), rescale()) : range.slice();\n  };\n\n  scale.unknown = function (_) {\n    return arguments.length ? (unknown = _, scale) : unknown;\n  };\n\n  scale.quantiles = function () {\n    return thresholds.slice();\n  };\n\n  scale.copy = function () {\n    return quantile().domain(domain).range(range).unknown(unknown);\n  };\n\n  return initRange.apply(scale, arguments);\n}","map":null,"metadata":{},"sourceType":"module"}