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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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var __extends = (this && this.__extends) || (function () {
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var extendStatics = function (d, b) {
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extendStatics = Object.setPrototypeOf ||
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
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return extendStatics(d, b);
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};
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return function (d, b) {
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if (typeof b !== "function" && b !== null)
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throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
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extendStatics(d, b);
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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})();
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import AU from '../ArrayUtilities.js';
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import MultipleLinesComposition from '../MultipleLinesComposition.js';
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import SeriesRegistry from '../../../Core/Series/SeriesRegistry.js';
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var SMAIndicator = SeriesRegistry.seriesTypes.sma;
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import U from '../../../Core/Utilities.js';
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var extend = U.extend, isArray = U.isArray, merge = U.merge;
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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 Stochastic series type.
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*
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* @private
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* @class
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* @name Highcharts.seriesTypes.stochastic
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*
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* @augments Highcharts.Series
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*/
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var StochasticIndicator = /** @class */ (function (_super) {
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__extends(StochasticIndicator, _super);
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function StochasticIndicator() {
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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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var _this = _super !== null && _super.apply(this, arguments) || this;
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/* *
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*
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* Properties
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*
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* */
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_this.data = void 0;
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_this.options = void 0;
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_this.points = void 0;
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return _this;
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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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StochasticIndicator.prototype.init = function () {
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SeriesRegistry.seriesTypes.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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smoothedLine: {
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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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StochasticIndicator.prototype.getValues = function (series, params) {
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var periodK = params.periods[0], periodD = params.periods[1], xVal = series.xData, yVal = series.yData, yValLen = yVal ? yVal.length : 0,
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// 0- date, 1-%K, 2-%D
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SO = [], xData = [], yData = [], slicedY, close = 3, low = 2, high = 1, CL, HL, LL, K, D = null, points, extremes, i;
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// Stochastic requires close value
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if (yValLen < periodK ||
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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 = periodK - 1; i < yValLen; i++) {
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slicedY = yVal.slice(i - periodK + 1, i + 1);
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// Calculate %K
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extremes = AU.getArrayExtremes(slicedY, low, high);
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LL = extremes[0]; // Lowest low in %K periods
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CL = yVal[i][close] - LL;
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HL = extremes[1] - LL;
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K = CL / HL * 100;
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xData.push(xVal[i]);
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yData.push([K, null]);
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// Calculate smoothed %D, which is SMA of %K
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if (i >= (periodK - 1) + (periodD - 1)) {
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points = SeriesRegistry.seriesTypes.sma.prototype.getValues
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.call(this, {
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xData: xData.slice(-periodD),
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yData: yData.slice(-periodD)
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}, {
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period: periodD
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});
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D = points.yData[0];
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}
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SO.push([xVal[i], K, D]);
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yData[yData.length - 1][1] = D;
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}
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return {
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values: SO,
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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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* Stochastic oscillator. 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/stochastic
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* Stochastic oscillator
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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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* @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/stochastic
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* @optionparent plotOptions.stochastic
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*/
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StochasticIndicator.defaultOptions = merge(SMAIndicator.defaultOptions, {
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/**
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* @excluding index, period
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*/
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params: {
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// Index and period are unchangeable, do not inherit (#15362)
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index: void 0,
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period: void 0,
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/**
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* Periods for Stochastic oscillator: [%K, %D].
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*
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* @type {Array<number,number>}
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* @default [14, 3]
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*/
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periods: [14, 3]
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},
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marker: {
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enabled: false
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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/>%K: {point.y}<br/>%D: {point.smoothed}<br/>'
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},
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/**
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* Smoothed line options.
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*/
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smoothedLine: {
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/**
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* Styles for a smoothed 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.stochastic.color
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* ](#plotOptions.stochastic.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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dataGrouping: {
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approximation: 'averages'
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}
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});
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return StochasticIndicator;
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}(SMAIndicator));
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extend(StochasticIndicator.prototype, {
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areaLinesNames: [],
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nameComponents: ['periods'],
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nameBase: 'Stochastic',
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pointArrayMap: ['y', 'smoothed'],
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parallelArrays: ['x', 'y', 'smoothed'],
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pointValKey: 'y',
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linesApiNames: ['smoothedLine']
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});
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MultipleLinesComposition.compose(StochasticIndicator);
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SeriesRegistry.registerSeriesType('stochastic', StochasticIndicator);
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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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export default StochasticIndicator;
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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 Stochastic indicator. If the [type](#series.stochastic.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.stochastic
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* @since 6.0.0
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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/stochastic
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* @apioption series.stochastic
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*/
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''; // to include the above in the js output
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