chore: version inicial del codigo fuente del LMS Estafeta
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/**
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*
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* License: www.highcharts.com/license
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*
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* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
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*
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* */
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'use strict';
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import H from '../../Core/Globals.js';
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import U from '../../Core/Utilities.js';
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var isArray = U.isArray, merge = U.merge, seriesType = U.seriesType;
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import multipleLinesMixin from '../../Mixins/MultipleLines.js';
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var SMA = H.seriesTypes.sma;
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/* eslint-disable valid-jsdoc */
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// Utils:
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/**
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* @private
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*/
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function getStandardDeviation(arr, index, isOHLC, mean) {
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var variance = 0, arrLen = arr.length, std = 0, i = 0, value;
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for (; i < arrLen; i++) {
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value = (isOHLC ? arr[i][index] : arr[i]) - mean;
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variance += value * value;
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}
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variance = variance / (arrLen - 1);
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std = Math.sqrt(variance);
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return std;
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}
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/* eslint-enable valid-jsdoc */
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/**
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* Bollinger Bands series type.
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*
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* @private
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* @class
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* @name Highcharts.seriesTypes.bb
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*
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* @augments Highcharts.Series
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*/
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seriesType('bb', 'sma',
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/**
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* Bollinger bands (BB). This series requires the `linkedTo` option to be
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* set and should be loaded after the `stock/indicators/indicators.js` file.
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*
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* @sample stock/indicators/bollinger-bands
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* Bollinger bands
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*
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* @extends plotOptions.sma
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* @since 6.0.0
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* @product highstock
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* @requires stock/indicators/indicators
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* @requires stock/indicators/bollinger-bands
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* @optionparent plotOptions.bb
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*/
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{
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params: {
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period: 20,
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/**
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* Standard deviation for top and bottom bands.
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*/
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standardDeviation: 2,
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index: 3
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},
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/**
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* Bottom line options.
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*/
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bottomLine: {
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/**
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* Styles for a bottom line.
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*/
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styles: {
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/**
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* Pixel width of the line.
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*/
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lineWidth: 1,
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/**
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* Color of the line. If not set, it's inherited from
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* [plotOptions.bb.color](#plotOptions.bb.color).
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*
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* @type {Highcharts.ColorString}
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*/
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lineColor: void 0
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}
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},
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/**
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* Top line options.
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*
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* @extends plotOptions.bb.bottomLine
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*/
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topLine: {
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styles: {
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lineWidth: 1,
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/**
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* @type {Highcharts.ColorString}
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*/
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lineColor: void 0
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}
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},
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tooltip: {
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pointFormat: '<span style="color:{point.color}">\u25CF</span><b> {series.name}</b><br/>Top: {point.top}<br/>Middle: {point.middle}<br/>Bottom: {point.bottom}<br/>'
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},
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marker: {
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enabled: false
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},
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dataGrouping: {
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approximation: 'averages'
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}
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},
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/**
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* @lends Highcharts.Series#
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*/
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merge(multipleLinesMixin, {
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pointArrayMap: ['top', 'middle', 'bottom'],
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pointValKey: 'middle',
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nameComponents: ['period', 'standardDeviation'],
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linesApiNames: ['topLine', 'bottomLine'],
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init: function () {
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SMA.prototype.init.apply(this, arguments);
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// Set default color for lines:
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this.options = merge({
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topLine: {
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styles: {
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lineColor: this.color
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}
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},
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bottomLine: {
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styles: {
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lineColor: this.color
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}
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}
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}, this.options);
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},
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getValues: function (series, params) {
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var period = params.period, standardDeviation = params.standardDeviation, xVal = series.xData, yVal = series.yData, yValLen = yVal ? yVal.length : 0,
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// 0- date, 1-middle line, 2-top line, 3-bottom line
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BB = [],
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// middle line, top line and bottom line
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ML, TL, BL, date, xData = [], yData = [], slicedX, slicedY, stdDev, isOHLC, point, i;
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if (xVal.length < period) {
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return;
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}
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isOHLC = isArray(yVal[0]);
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for (i = period; i <= yValLen; i++) {
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slicedX = xVal.slice(i - period, i);
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slicedY = yVal.slice(i - period, i);
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point = SMA.prototype.getValues.call(this, {
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xData: slicedX,
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yData: slicedY
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}, params);
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date = point.xData[0];
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ML = point.yData[0];
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stdDev = getStandardDeviation(slicedY, params.index, isOHLC, ML);
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TL = ML + standardDeviation * stdDev;
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BL = ML - standardDeviation * stdDev;
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BB.push([date, TL, ML, BL]);
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xData.push(date);
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yData.push([TL, ML, BL]);
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}
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return {
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values: BB,
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xData: xData,
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yData: yData
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};
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}
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}));
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/**
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* A bollinger bands indicator. If the [type](#series.bb.type) option is not
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* specified, it is inherited from [chart.type](#chart.type).
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*
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* @extends series,plotOptions.bb
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* @since 6.0.0
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* @excluding dataParser, dataURL
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* @product highstock
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* @requires stock/indicators/indicators
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* @requires stock/indicators/bollinger-bands
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* @apioption series.bb
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*/
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''; // to include the above in the js output
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