Icard/angular-clarity-master(work.../node_modules/highcharts/indicators/trendline.src.js

182 lines
6.3 KiB
JavaScript

/**
* @license Highstock JS v11.4.1 (2024-04-04)
*
* Indicator series type for Highcharts Stock
*
* (c) 2010-2024 Sebastian Bochan
*
* 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/trendline', ['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/TrendLine/TrendLineIndicator.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. !!!!!!!
*
* */
const { sma: SMAIndicator } = SeriesRegistry.seriesTypes;
const { extend, merge, isArray } = U;
/* *
*
* Class
*
* */
/**
* The Trend line series type.
*
* @private
* @class
* @name Highcharts.seriesTypes.trendline
*
* @augments Highcharts.Series
*/
class TrendLineIndicator extends SMAIndicator {
constructor() {
/* *
*
* Static Properties
*
* */
super(...arguments);
this.updateAllPoints = true;
}
/* *
*
* Functions
*
* */
getValues(series, params) {
const orgXVal = series.xData, yVal = series.yData, xVal = [], LR = [], xData = [], yData = [], index = params.index;
let numerator = 0, denominator = 0, xValSum = 0, yValSum = 0, counter = 0;
// Create an array of consecutive xValues, (don't remove duplicates)
for (let i = 0; i < orgXVal.length; i++) {
if (i === 0 || orgXVal[i] !== orgXVal[i - 1]) {
counter++;
}
xVal.push(counter);
}
for (let i = 0; i < xVal.length; i++) {
xValSum += xVal[i];
yValSum += isArray(yVal[i]) ? yVal[i][index] : yVal[i];
}
const meanX = xValSum / xVal.length, meanY = yValSum / yVal.length;
for (let i = 0; i < xVal.length; i++) {
const y = isArray(yVal[i]) ? yVal[i][index] : yVal[i];
numerator += (xVal[i] - meanX) * (y - meanY);
denominator += Math.pow(xVal[i] - meanX, 2);
}
// Calculate linear regression:
for (let i = 0; i < xVal.length; i++) {
// Check if the xVal is already used
if (orgXVal[i] === xData[xData.length - 1]) {
continue;
}
const x = orgXVal[i], y = meanY + (numerator / denominator) * (xVal[i] - meanX);
LR.push([x, y]);
xData.push(x);
yData.push(y);
}
return {
xData: xData,
yData: yData,
values: LR
};
}
}
/**
* Trendline (linear regression) fits a straight line to the selected data
* using a method called the Sum Of Least Squares. This series requires the
* `linkedTo` option to be set.
*
* @sample stock/indicators/trendline
* Trendline indicator
*
* @extends plotOptions.sma
* @since 7.1.3
* @product highstock
* @requires stock/indicators/indicators
* @requires stock/indicators/trendline
* @optionparent plotOptions.trendline
*/
TrendLineIndicator.defaultOptions = merge(SMAIndicator.defaultOptions, {
/**
* @excluding period
*/
params: {
period: void 0,
/**
* The point index which indicator calculations will base. For
* example using OHLC data, index=2 means the indicator will be
* calculated using Low values.
*
* @default 3
*/
index: 3
}
});
extend(TrendLineIndicator.prototype, {
nameBase: 'Trendline',
nameComponents: void 0
});
SeriesRegistry.registerSeriesType('trendline', TrendLineIndicator);
/* *
*
* Default Export
*
* */
/* *
*
* API Options
*
* */
/**
* A `TrendLine` series. If the [type](#series.trendline.type) option is not
* specified, it is inherited from [chart.type](#chart.type).
*
* @extends series,plotOptions.trendline
* @since 7.1.3
* @product highstock
* @excluding dataParser, dataURL
* @requires stock/indicators/indicators
* @requires stock/indicators/trendline
* @apioption series.trendline
*/
''; // To include the above in the js output
return TrendLineIndicator;
});
_registerModule(_modules, 'masters/indicators/trendline.src.js', [_modules['Core/Globals.js']], function (Highcharts) {
return Highcharts;
});
}));