highcharts
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JavaScript charting framework
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JavaScript
/**
* @license Highstock JS v12.3.0 (2025-06-21)
* @module highcharts/indicators/trendline
* @requires highcharts
* @requires highcharts/modules/stock
*
* Indicator series type for Highcharts Stock
*
* (c) 2010-2025 Sebastian Bochan
*
* License: www.highcharts.com/license
*/
import * as __WEBPACK_EXTERNAL_MODULE__highcharts_src_js_8202131d__ from "../highcharts.src.js";
import * as __WEBPACK_EXTERNAL_MODULE__modules_stock_src_js_b3d80146__ from "../modules/stock.src.js";
/******/ // The require scope
/******/ var __webpack_require__ = {};
/******/
/************************************************************************/
/******/ /* webpack/runtime/compat get default export */
/******/ (() => {
/******/ // getDefaultExport function for compatibility with non-harmony modules
/******/ __webpack_require__.n = (module) => {
/******/ var getter = module && module.__esModule ?
/******/ () => (module['default']) :
/******/ () => (module);
/******/ __webpack_require__.d(getter, { a: getter });
/******/ return getter;
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/******/ /* webpack/runtime/define property getters */
/******/ (() => {
/******/ // define getter functions for harmony exports
/******/ __webpack_require__.d = (exports, definition) => {
/******/ for(var key in definition) {
/******/ if(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {
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;// external ["../highcharts.src.js","default"]
const external_highcharts_src_js_default_namespaceObject = __WEBPACK_EXTERNAL_MODULE__highcharts_src_js_8202131d__["default"];
var external_highcharts_src_js_default_default = /*#__PURE__*/__webpack_require__.n(external_highcharts_src_js_default_namespaceObject);
;// external "../modules/stock.src.js"
var x = (y) => {
var x = {}; __webpack_require__.d(x,
y); return x
}
var y = (x) => (() => (x))
const stock_src_js_namespaceObject = x({ });
;// external ["../highcharts.src.js","default","SeriesRegistry"]
const external_highcharts_src_js_default_SeriesRegistry_namespaceObject = __WEBPACK_EXTERNAL_MODULE__highcharts_src_js_8202131d__["default"].SeriesRegistry;
var external_highcharts_src_js_default_SeriesRegistry_default = /*#__PURE__*/__webpack_require__.n(external_highcharts_src_js_default_SeriesRegistry_namespaceObject);
;// ./code/es-modules/Stock/Indicators/TrendLine/TrendLineIndicator.js
/* *
*
* License: www.highcharts.com/license
*
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
*
* */
const { sma: SMAIndicator } = (external_highcharts_src_js_default_SeriesRegistry_default()).seriesTypes;
const { extend, merge, isArray } = (external_highcharts_src_js_default_default());
/* *
*
* 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, // Unchangeable period, do not inherit (#15362)
/**
* 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
});
external_highcharts_src_js_default_SeriesRegistry_default().registerSeriesType('trendline', TrendLineIndicator);
/* *
*
* Default Export
*
* */
/* harmony default export */ const TrendLine_TrendLineIndicator = ((/* unused pure expression or super */ null && (TrendLineIndicator)));
/* *
*
* 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
;// ./code/es-modules/masters/indicators/trendline.src.js
/* harmony default export */ const trendline_src = ((external_highcharts_src_js_default_default()));
export { trendline_src as default };