/** * @license Highstock JS v11.2.0 (2023-10-30) * * Indicator series type for Highcharts Stock * * (c) 2010-2021 Kacper Madej * * License: www.highcharts.com/license */ (function (factory) { if (typeof module === 'object' && module.exports) { factory['default'] = factory; module.exports = factory; } else if (typeof define === 'function' && define.amd) { define('highcharts/indicators/wma', ['highcharts', 'highcharts/modules/stock'], function (Highcharts) { factory(Highcharts); factory.Highcharts = Highcharts; return factory; }); } else { factory(typeof Highcharts !== 'undefined' ? Highcharts : undefined); } }(function (Highcharts) { 'use strict'; var _modules = Highcharts ? Highcharts._modules : {}; function _registerModule(obj, path, args, fn) { if (!obj.hasOwnProperty(path)) { obj[path] = fn.apply(null, args); if (typeof CustomEvent === 'function') { window.dispatchEvent(new CustomEvent( 'HighchartsModuleLoaded', { detail: { path: path, module: obj[path] } } )); } } } _registerModule(_modules, 'Stock/Indicators/WMA/WMAIndicator.js', [_modules['Core/Series/SeriesRegistry.js'], _modules['Core/Utilities.js']], function (SeriesRegistry, U) { /* * * * (c) 2010-2021 Kacper Madej * * License: www.highcharts.com/license * * !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!! * * */ var __extends = (this && this.__extends) || (function () { var extendStatics = function (d, b) { extendStatics = Object.setPrototypeOf || ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) || function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; }; return extendStatics(d, b); }; return function (d, b) { if (typeof b !== "function" && b !== null) throw new TypeError("Class extends value " + String(b) + " is not a constructor or null"); extendStatics(d, b); function __() { this.constructor = d; } d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __()); }; })(); var SMAIndicator = SeriesRegistry.seriesTypes.sma; var isArray = U.isArray, merge = U.merge; /* * * * Functions * * */ // Utils: /** * @private */ function accumulateAverage(points, xVal, yVal, i, index) { var xValue = xVal[i], yValue = index < 0 ? yVal[i] : yVal[i][index]; points.push([xValue, yValue]); } /** * @private */ function weightedSumArray(array, pLen) { // The denominator is the sum of the number of days as a triangular number. // If there are 5 days, the triangular numbers are 5, 4, 3, 2, and 1. // The sum is 5 + 4 + 3 + 2 + 1 = 15. var denominator = (pLen + 1) / 2 * pLen; // reduce VS loop => reduce return array.reduce(function (prev, cur, i) { return [null, prev[1] + cur[1] * (i + 1)]; })[1] / denominator; } /** * @private */ function populateAverage(points, xVal, yVal, i) { var pLen = points.length, wmaY = weightedSumArray(points, pLen), wmaX = xVal[i - 1]; points.shift(); // remove point until range < period return [wmaX, wmaY]; } /* * * * Class * * */ /** * The SMA series type. * * @private * @class * @name Highcharts.seriesTypes.wma * * @augments Highcharts.Series */ var WMAIndicator = /** @class */ (function (_super) { __extends(WMAIndicator, _super); function WMAIndicator() { /* * * * Static Properties * * */ var _this = _super !== null && _super.apply(this, arguments) || this; /* * * * Properties * * */ _this.data = void 0; _this.options = void 0; _this.points = void 0; return _this; } /* * * * Functions * * */ WMAIndicator.prototype.getValues = function (series, params) { var period = params.period, xVal = series.xData, yVal = series.yData, yValLen = yVal ? yVal.length : 0, xValue = xVal[0], wma = [], xData = [], yData = []; var range = 1, index = -1, i, wmaPoint, yValue = yVal[0]; if (xVal.length < period) { return; } // Switch index for OHLC / Candlestick if (isArray(yVal[0])) { index = params.index; yValue = yVal[0][index]; } // Starting point var points = [[xValue, yValue]]; // Accumulate first N-points while (range !== period) { accumulateAverage(points, xVal, yVal, range, index); range++; } // Calculate value one-by-one for each period in visible data for (i = range; i < yValLen; i++) { wmaPoint = populateAverage(points, xVal, yVal, i); wma.push(wmaPoint); xData.push(wmaPoint[0]); yData.push(wmaPoint[1]); accumulateAverage(points, xVal, yVal, i, index); } wmaPoint = populateAverage(points, xVal, yVal, i); wma.push(wmaPoint); xData.push(wmaPoint[0]); yData.push(wmaPoint[1]); return { values: wma, xData: xData, yData: yData }; }; /** * Weighted moving average indicator (WMA). This series requires `linkedTo` * option to be set. * * @sample stock/indicators/wma * Weighted moving average indicator * * @extends plotOptions.sma * @since 6.0.0 * @product highstock * @requires stock/indicators/indicators * @requires stock/indicators/wma * @optionparent plotOptions.wma */ WMAIndicator.defaultOptions = merge(SMAIndicator.defaultOptions, { params: { index: 3, period: 9 } }); return WMAIndicator; }(SMAIndicator)); SeriesRegistry.registerSeriesType('wma', WMAIndicator); /* * * * Default Export * * */ /* * * * API Options * * */ /** * A `WMA` series. If the [type](#series.wma.type) option is not specified, it * is inherited from [chart.type](#chart.type). * * @extends series,plotOptions.wma * @since 6.0.0 * @product highstock * @excluding dataParser, dataURL * @requires stock/indicators/indicators * @requires stock/indicators/wma * @apioption series.wma */ ''; // adds doclet above to the transpiled file return WMAIndicator; }); _registerModule(_modules, 'masters/indicators/wma.src.js', [], function () { }); }));