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- /**
- * @license Highstock JS v9.1.1 (2021-06-04)
- *
- * Indicator series type for Highcharts Stock
- *
- * (c) 2010-2021 Kacper Madej
- *
- * 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/roc', ['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/ROC/ROCIndicator.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 (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 isArray = U.isArray,
- merge = U.merge,
- extend = U.extend;
- /* eslint-disable require-jsdoc */
- // Utils:
- function populateAverage(xVal, yVal, i, period, index) {
- /* Calculated as:
- (Closing Price [today] - Closing Price [n days ago]) /
- Closing Price [n days ago] * 100
- Return y as null when avoiding division by zero */
- var nDaysAgoY,
- rocY;
- if (index < 0) {
- // y data given as an array of values
- nDaysAgoY = yVal[i - period];
- rocY = nDaysAgoY ?
- (yVal[i] - nDaysAgoY) / nDaysAgoY * 100 :
- null;
- }
- else {
- // y data given as an array of arrays and the index should be used
- nDaysAgoY = yVal[i - period][index];
- rocY = nDaysAgoY ?
- (yVal[i][index] - nDaysAgoY) / nDaysAgoY * 100 :
- null;
- }
- return [xVal[i], rocY];
- }
- /* eslint-enable require-jsdoc */
- /* *
- *
- * Class
- *
- * */
- /**
- * The ROC series type.
- *
- * @private
- * @class
- * @name Highcharts.seriesTypes.roc
- *
- * @augments Highcharts.Series
- */
- var ROCIndicator = /** @class */ (function (_super) {
- __extends(ROCIndicator, _super);
- function ROCIndicator() {
- 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
- *
- * */
- ROCIndicator.prototype.getValues = function (series, params) {
- var period = params.period,
- xVal = series.xData,
- yVal = series.yData,
- yValLen = yVal ? yVal.length : 0,
- ROC = [],
- xData = [],
- yData = [],
- i,
- index = -1,
- ROCPoint;
- // Period is used as a number of time periods ago, so we need more
- // (at least 1 more) data than the period value
- if (xVal.length <= period) {
- return;
- }
- // Switch index for OHLC / Candlestick / Arearange
- if (isArray(yVal[0])) {
- index = params.index;
- }
- // i = period <-- skip first N-points
- // Calculate value one-by-one for each period in visible data
- for (i = period; i < yValLen; i++) {
- ROCPoint = populateAverage(xVal, yVal, i, period, index);
- ROC.push(ROCPoint);
- xData.push(ROCPoint[0]);
- yData.push(ROCPoint[1]);
- }
- return {
- values: ROC,
- xData: xData,
- yData: yData
- };
- };
- /**
- * Rate of change indicator (ROC). The indicator value for each point
- * is defined as:
- *
- * `(C - Cn) / Cn * 100`
- *
- * where: `C` is the close value of the point of the same x in the
- * linked series and `Cn` is the close value of the point `n` periods
- * ago. `n` is set through [period](#plotOptions.roc.params.period).
- *
- * This series requires `linkedTo` option to be set.
- *
- * @sample stock/indicators/roc
- * Rate of change indicator
- *
- * @extends plotOptions.sma
- * @since 6.0.0
- * @product highstock
- * @requires stock/indicators/indicators
- * @requires stock/indicators/roc
- * @optionparent plotOptions.roc
- */
- ROCIndicator.defaultOptions = merge(SMAIndicator.defaultOptions, {
- params: {
- index: 3,
- period: 9
- }
- });
- return ROCIndicator;
- }(SMAIndicator));
- extend(ROCIndicator.prototype, {
- nameBase: 'Rate of Change'
- });
- SeriesRegistry.registerSeriesType('roc', ROCIndicator);
- /* *
- *
- * Default Export
- *
- * */
- /**
- * A `ROC` series. If the [type](#series.wma.type) option is not
- * specified, it is inherited from [chart.type](#chart.type).
- *
- * Rate of change indicator (ROC). The indicator value for each point
- * is defined as:
- *
- * `(C - Cn) / Cn * 100`
- *
- * where: `C` is the close value of the point of the same x in the
- * linked series and `Cn` is the close value of the point `n` periods
- * ago. `n` is set through [period](#series.roc.params.period).
- *
- * This series requires `linkedTo` option to be set.
- *
- * @extends series,plotOptions.roc
- * @since 6.0.0
- * @product highstock
- * @excluding dataParser, dataURL
- * @requires stock/indicators/indicators
- * @requires stock/indicators/roc
- * @apioption series.roc
- */
- ''; // to include the above in the js output
- return ROCIndicator;
- });
- _registerModule(_modules, 'masters/indicators/roc.src.js', [], function () {
- });
- }));
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