/** * @license Highstock JS v9.1.1 (2021-06-04) * * Indicator series type for Highcharts Stock * * (c) 2010-2021 Wojciech Chmiel * * License: www.highcharts.com/license */ 'use strict'; (function (factory) { if (typeof module === 'object' && module.exports) { factory['default'] = factory; module.exports = factory; } else if (typeof define === 'function' && define.amd) { define('highcharts/indicators/dpo', ['highcharts', 'highcharts/modules/stock'], function (Highcharts) { factory(Highcharts); factory.Highcharts = Highcharts; return factory; }); } else { factory(typeof Highcharts !== 'undefined' ? Highcharts : undefined); } }(function (Highcharts) { var _modules = Highcharts ? Highcharts._modules : {}; function _registerModule(obj, path, args, fn) { if (!obj.hasOwnProperty(path)) { obj[path] = fn.apply(null, args); } } _registerModule(_modules, 'Stock/Indicators/DPO/DPOIndicator.js', [_modules['Core/Series/SeriesRegistry.js'], _modules['Core/Utilities.js']], function (SeriesRegistry, U) { /* * * * 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 (b.hasOwnProperty(p)) d[p] = b[p]; }; return extendStatics(d, b); }; return function (d, b) { extendStatics(d, b); function __() { this.constructor = d; } d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __()); }; })(); var SMAIndicator = SeriesRegistry.seriesTypes.sma; var extend = U.extend, merge = U.merge, correctFloat = U.correctFloat, pick = U.pick; /* eslint-disable valid-jsdoc */ // Utils: /** * @private */ function accumulatePoints(sum, yVal, i, index, subtract) { var price = pick(yVal[i][index], yVal[i]); if (subtract) { return correctFloat(sum - price); } return correctFloat(sum + price); } /* * * * Class * * */ /** * The DPO series type. * * @private * @class * @name Highcharts.seriesTypes.dpo * * @augments Highcharts.Series */ var DPOIndicator = /** @class */ (function (_super) { __extends(DPOIndicator, _super); function DPOIndicator() { var _this = _super !== null && _super.apply(this, arguments) || this; /* * * * Properties * * */ _this.options = void 0; _this.data = void 0; _this.points = void 0; return _this; } /* * * * Functions * * */ /** * @lends Highcharts.Series# */ DPOIndicator.prototype.getValues = function (series, params) { var period = params.period, index = params.index, offset = Math.floor(period / 2 + 1), range = period + offset, xVal = series.xData || [], yVal = series.yData || [], yValLen = yVal.length, // 0- date, 1- Detrended Price Oscillator DPO = [], xData = [], yData = [], sum = 0, oscillator, periodIndex, rangeIndex, price, i, j; if (xVal.length <= range) { return; } // Accumulate first N-points for SMA for (i = 0; i < period - 1; i++) { sum = accumulatePoints(sum, yVal, i, index); } // Detrended Price Oscillator formula: // DPO = Price - Simple moving average [from (n / 2 + 1) days ago] for (j = 0; j <= yValLen - range; j++) { periodIndex = j + period - 1; rangeIndex = j + range - 1; // adding the last period point sum = accumulatePoints(sum, yVal, periodIndex, index); price = pick(yVal[rangeIndex][index], yVal[rangeIndex]); oscillator = price - sum / period; // substracting the first period point sum = accumulatePoints(sum, yVal, j, index, true); DPO.push([xVal[rangeIndex], oscillator]); xData.push(xVal[rangeIndex]); yData.push(oscillator); } return { values: DPO, xData: xData, yData: yData }; }; /** * Detrended Price Oscillator. This series requires the `linkedTo` option to * be set and should be loaded after the `stock/indicators/indicators.js`. * * @sample {highstock} stock/indicators/dpo * Detrended Price Oscillator * * @extends plotOptions.sma * @since 7.0.0 * @product highstock * @excluding allAreas, colorAxis, compare, compareBase, joinBy, keys, * navigatorOptions, pointInterval, pointIntervalUnit, * pointPlacement, pointRange, pointStart, showInNavigator, * stacking * @requires stock/indicators/indicators * @requires stock/indicators/dpo * @optionparent plotOptions.dpo */ DPOIndicator.defaultOptions = merge(SMAIndicator.defaultOptions, { /** * Parameters used in calculation of Detrended Price Oscillator series * points. */ params: { index: 0, /** * Period for Detrended Price Oscillator */ period: 21 } }); return DPOIndicator; }(SMAIndicator)); extend(DPOIndicator.prototype, { nameBase: 'DPO' }); SeriesRegistry.registerSeriesType('dpo', DPOIndicator); /* * * * Default Export * * */ /** * A Detrended Price Oscillator. If the [type](#series.dpo.type) option is not * specified, it is inherited from [chart.type](#chart.type). * * @extends series,plotOptions.dpo * @since 7.0.0 * @product highstock * @excluding allAreas, colorAxis, compare, compareBase, dataParser, dataURL, * joinBy, keys, navigatorOptions, pointInterval, pointIntervalUnit, * pointPlacement, pointRange, pointStart, showInNavigator, stacking * @requires stock/indicators/indicators * @requires stock/indicators/dpo * @apioption series.dpo */ ''; // to include the above in the js output' return DPOIndicator; }); _registerModule(_modules, 'masters/indicators/dpo.src.js', [], function () { }); }));