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- function asc(arr) {
- arr.sort(function (a, b) {
- return a - b;
- });
- return arr;
- }
- function quantile(ascArr, p) {
- var H = (ascArr.length - 1) * p + 1;
- var h = Math.floor(H);
- var v = +ascArr[h - 1];
- var e = H - h;
- return e ? v + e * (ascArr[h] - v) : v;
- }
- export default function (rawData, opt) {
- opt = opt || {};
- var boxData = [];
- var outliers = [];
- var axisData = [];
- var boundIQR = opt.boundIQR;
- var useExtreme = boundIQR === 'none' || boundIQR === 0;
- for (var i = 0; i < rawData.length; i++) {
- axisData.push(i + '');
- var ascList = asc(rawData[i].slice());
- var Q1 = quantile(ascList, 0.25);
- var Q2 = quantile(ascList, 0.5);
- var Q3 = quantile(ascList, 0.75);
- var min = ascList[0];
- var max = ascList[ascList.length - 1];
- var bound = (boundIQR == null ? 1.5 : boundIQR) * (Q3 - Q1);
- var low = useExtreme ? min : Math.max(min, Q1 - bound);
- var high = useExtreme ? max : Math.min(max, Q3 + bound);
- boxData.push([low, Q1, Q2, Q3, high]);
- for (var j = 0; j < ascList.length; j++) {
- var dataItem = ascList[j];
- if (dataItem < low || dataItem > high) {
- var outlier = [i, dataItem];
- opt.layout === 'vertical' && outlier.reverse();
- outliers.push(outlier);
- }
- }
- }
- return {
- boxData: boxData,
- outliers: outliers,
- axisData: axisData
- };
- }
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