225 lines
7.6 KiB
JavaScript
225 lines
7.6 KiB
JavaScript
/**
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* @license Highstock JS v11.4.1 (2024-04-04)
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*
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* Indicator series type for Highcharts Stock
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*
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* (c) 2010-2024 Wojciech Chmiel
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*
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* License: www.highcharts.com/license
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*/
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(function (factory) {
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if (typeof module === 'object' && module.exports) {
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factory['default'] = factory;
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module.exports = factory;
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} else if (typeof define === 'function' && define.amd) {
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define('highcharts/indicators/williams-r', ['highcharts', 'highcharts/modules/stock'], function (Highcharts) {
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factory(Highcharts);
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factory.Highcharts = Highcharts;
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return factory;
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});
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} else {
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factory(typeof Highcharts !== 'undefined' ? Highcharts : undefined);
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}
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}(function (Highcharts) {
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'use strict';
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var _modules = Highcharts ? Highcharts._modules : {};
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function _registerModule(obj, path, args, fn) {
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if (!obj.hasOwnProperty(path)) {
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obj[path] = fn.apply(null, args);
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if (typeof CustomEvent === 'function') {
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window.dispatchEvent(new CustomEvent(
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'HighchartsModuleLoaded',
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{ detail: { path: path, module: obj[path] } }
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));
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}
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}
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}
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_registerModule(_modules, 'Stock/Indicators/ArrayUtilities.js', [], function () {
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/**
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*
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* (c) 2010-2024 Pawel Fus & Daniel Studencki
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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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/* *
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*
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* Functions
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*
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* */
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/**
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* Get extremes of array filled by OHLC data.
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*
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* @private
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*
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* @param {Array<Array<number>>} arr
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* Array of OHLC points (arrays).
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*
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* @param {number} minIndex
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* Index of "low" value in point array.
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*
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* @param {number} maxIndex
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* Index of "high" value in point array.
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*
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* @return {Array<number,number>}
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* Returns array with min and max value.
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*/
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function getArrayExtremes(arr, minIndex, maxIndex) {
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return arr.reduce((prev, target) => [
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Math.min(prev[0], target[minIndex]),
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Math.max(prev[1], target[maxIndex])
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], [Number.MAX_VALUE, -Number.MAX_VALUE]);
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}
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/* *
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*
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* Default Export
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*
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* */
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const ArrayUtilities = {
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getArrayExtremes
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};
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return ArrayUtilities;
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});
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_registerModule(_modules, 'Stock/Indicators/WilliamsR/WilliamsRIndicator.js', [_modules['Stock/Indicators/ArrayUtilities.js'], _modules['Core/Series/SeriesRegistry.js'], _modules['Core/Utilities.js']], function (AU, SeriesRegistry, U) {
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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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const { sma: SMAIndicator } = SeriesRegistry.seriesTypes;
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const { extend, isArray, merge } = U;
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/* *
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*
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* Class
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*
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* */
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/**
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* The Williams %R series type.
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*
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* @private
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* @class
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* @name Highcharts.seriesTypes.williamsr
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*
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* @augments Highcharts.Series
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*/
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class WilliamsRIndicator extends SMAIndicator {
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/* *
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*
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* Functions
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*
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* */
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getValues(series, params) {
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const period = params.period, xVal = series.xData, yVal = series.yData, yValLen = yVal ? yVal.length : 0, WR = [], // 0- date, 1- Williams %R
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xData = [], yData = [], close = 3, low = 2, high = 1;
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let slicedY, extremes, R, HH, // Highest high value in period
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LL, // Lowest low value in period
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CC, // Current close value
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i;
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// Williams %R requires close value
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if (xVal.length < period ||
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!isArray(yVal[0]) ||
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yVal[0].length !== 4) {
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return;
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}
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// For a N-period, we start from N-1 point, to calculate Nth point
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// That is why we later need to comprehend slice() elements list
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// with (+1)
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for (i = period - 1; i < yValLen; i++) {
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slicedY = yVal.slice(i - period + 1, i + 1);
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extremes = AU.getArrayExtremes(slicedY, low, high);
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LL = extremes[0];
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HH = extremes[1];
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CC = yVal[i][close];
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R = ((HH - CC) / (HH - LL)) * -100;
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if (xVal[i]) {
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WR.push([xVal[i], R]);
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xData.push(xVal[i]);
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yData.push(R);
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}
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}
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return {
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values: WR,
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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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*
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* Static Properties
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*
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* */
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/**
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* Williams %R. This series requires the `linkedTo` option to be
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* set and should be loaded after the `stock/indicators/indicators.js`.
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*
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* @sample {highstock} stock/indicators/williams-r
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* Williams %R
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*
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* @extends plotOptions.sma
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* @since 7.0.0
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* @product highstock
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* @excluding allAreas, colorAxis, joinBy, keys, navigatorOptions,
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* pointInterval, pointIntervalUnit, pointPlacement,
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* pointRange, pointStart, showInNavigator, stacking
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* @requires stock/indicators/indicators
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* @requires stock/indicators/williams-r
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* @optionparent plotOptions.williamsr
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*/
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WilliamsRIndicator.defaultOptions = merge(SMAIndicator.defaultOptions, {
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/**
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* Parameters used in calculation of Williams %R series points.
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* @excluding index
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*/
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params: {
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index: void 0,
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/**
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* Period for Williams %R oscillator
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*/
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period: 14
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}
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});
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extend(WilliamsRIndicator.prototype, {
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nameBase: 'Williams %R'
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});
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SeriesRegistry.registerSeriesType('williamsr', WilliamsRIndicator);
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/* *
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*
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* Default Export
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*
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* */
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/* *
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*
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* API Options
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*
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* */
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/**
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* A `Williams %R Oscillator` series. If the [type](#series.williamsr.type)
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* option is not specified, it is inherited from [chart.type](#chart.type).
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*
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* @extends series,plotOptions.williamsr
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* @since 7.0.0
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* @product highstock
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* @excluding allAreas, colorAxis, dataParser, dataURL, joinBy, keys,
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* navigatorOptions, pointInterval, pointIntervalUnit,
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* pointPlacement, pointRange, pointStart, showInNavigator, stacking
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* @requires stock/indicators/indicators
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* @requires stock/indicators/williams-r
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* @apioption series.williamsr
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*/
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''; // Adds doclets above to the transpiled file
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return WilliamsRIndicator;
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});
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_registerModule(_modules, 'masters/indicators/williams-r.src.js', [_modules['Core/Globals.js']], function (Highcharts) {
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return Highcharts;
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});
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})); |