|
/*
|
* Licensed to the Apache Software Foundation (ASF) under one
|
* or more contributor license agreements. See the NOTICE file
|
* distributed with this work for additional information
|
* regarding copyright ownership. The ASF licenses this file
|
* to you under the Apache License, Version 2.0 (the
|
* "License"); you may not use this file except in compliance
|
* with the License. You may obtain a copy of the License at
|
*
|
* http://www.apache.org/licenses/LICENSE-2.0
|
*
|
* Unless required by applicable law or agreed to in writing,
|
* software distributed under the License is distributed on an
|
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
|
* KIND, either express or implied. See the License for the
|
* specific language governing permissions and limitations
|
* under the License.
|
*/
|
|
|
/**
|
* AUTO-GENERATED FILE. DO NOT MODIFY.
|
*/
|
|
/*
|
* Licensed to the Apache Software Foundation (ASF) under one
|
* or more contributor license agreements. See the NOTICE file
|
* distributed with this work for additional information
|
* regarding copyright ownership. The ASF licenses this file
|
* to you under the Apache License, Version 2.0 (the
|
* "License"); you may not use this file except in compliance
|
* with the License. You may obtain a copy of the License at
|
*
|
* http://www.apache.org/licenses/LICENSE-2.0
|
*
|
* Unless required by applicable law or agreed to in writing,
|
* software distributed under the License is distributed on an
|
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
|
* KIND, either express or implied. See the License for the
|
* specific language governing permissions and limitations
|
* under the License.
|
*/
|
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;
|
}
|
/**
|
* See:
|
* <https://en.wikipedia.org/wiki/Box_plot#cite_note-frigge_hoaglin_iglewicz-2>
|
* <http://stat.ethz.ch/R-manual/R-devel/library/grDevices/html/boxplot.stats.html>
|
*
|
* Helper method for preparing data.
|
*
|
* @param {Array.<number>} rawData like
|
* [
|
* [12,232,443], (raw data set for the first box)
|
* [3843,5545,1232], (raw data set for the second box)
|
* ...
|
* ]
|
* @param {Object} [opt]
|
*
|
* @param {(number|string)} [opt.boundIQR=1.5] Data less than min bound is outlier.
|
* default 1.5, means Q1 - 1.5 * (Q3 - Q1).
|
* If 'none'/0 passed, min bound will not be used.
|
* @param {(number|string)} [opt.layout='horizontal']
|
* Box plot layout, can be 'horizontal' or 'vertical'
|
* @return {Object} {
|
* boxData: Array.<Array.<number>>
|
* outliers: Array.<Array.<number>>
|
* axisData: Array.<string>
|
* }
|
*/
|
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
|
};
|
}
|
