// SPDX-License-Identifier: LicenseRef-Highcharts
/**
 * @license Highstock JS v13.0.0 (2026-06-11)
 * @module highcharts/indicators/trendline
 * @requires highcharts
 * @requires highcharts/modules/stock
 *
 * Indicator series type for Highcharts Stock
 *
 * (c) 2010-2026 Highsoft AS
 * Author: Sebastian Bochan
 *
 * A commercial license may be required depending on use,
 * see www.highcharts.com/license
 */
(function webpackUniversalModuleDefinition(root, factory) {
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		module.exports = factory(root["_Highcharts"], root["_Highcharts"]["SeriesRegistry"]);
	else if(typeof define === 'function' && define.amd)
		define("highcharts/indicators/trendline", ["highcharts/highcharts"], function (amd1) {return factory(amd1,amd1["SeriesRegistry"]);});
	else if(typeof exports === 'object')
		exports["highcharts/indicators/trendline"] = factory(root["_Highcharts"], root["_Highcharts"]["SeriesRegistry"]);
	else
		root["Highcharts"] = factory(root["Highcharts"], root["Highcharts"]["SeriesRegistry"]);
})(typeof window === 'undefined' ? this : window, function(__WEBPACK_EXTERNAL_MODULE__944__, __WEBPACK_EXTERNAL_MODULE__512__) {
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var __webpack_exports__ = {};

// EXPORTS
__webpack_require__.d(__webpack_exports__, {
  "default": function() { return /* binding */ trendline_src; }
});

// EXTERNAL MODULE: external {"amd":["highcharts/highcharts"],"commonjs":["highcharts"],"commonjs2":["highcharts"],"root":["Highcharts"]}
var highcharts_commonjs_highcharts_commonjs2_highcharts_root_Highcharts_ = __webpack_require__(944);
var highcharts_commonjs_highcharts_commonjs2_highcharts_root_Highcharts_default = /*#__PURE__*/__webpack_require__.n(highcharts_commonjs_highcharts_commonjs2_highcharts_root_Highcharts_);
// EXTERNAL MODULE: external {"amd":["highcharts/highcharts","SeriesRegistry"],"commonjs":["highcharts","SeriesRegistry"],"commonjs2":["highcharts","SeriesRegistry"],"root":["Highcharts","SeriesRegistry"]}
var highcharts_SeriesRegistry_commonjs_highcharts_SeriesRegistry_commonjs2_highcharts_SeriesRegistry_root_Highcharts_SeriesRegistry_ = __webpack_require__(512);
var highcharts_SeriesRegistry_commonjs_highcharts_SeriesRegistry_commonjs2_highcharts_SeriesRegistry_root_Highcharts_SeriesRegistry_default = /*#__PURE__*/__webpack_require__.n(highcharts_SeriesRegistry_commonjs_highcharts_SeriesRegistry_commonjs2_highcharts_SeriesRegistry_root_Highcharts_SeriesRegistry_);
;// ./code/es5/es-modules/Stock/Indicators/TrendLine/TrendLineIndicator.js
/* *
 *
 *  Integration of this software requires a license.
 *  - For commercial use, see www.highcharts.com/license
 *  - For non-commercial, see www.highcharts.com/license-eula
 *
 *
 * */

var __extends = (undefined && undefined.__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 = (highcharts_SeriesRegistry_commonjs_highcharts_SeriesRegistry_commonjs2_highcharts_SeriesRegistry_root_Highcharts_SeriesRegistry_default()).seriesTypes.sma;

/* *
 *
 *  Class
 *
 * */
/**
 * The Trend line series type.
 *
 * @internal
 * @class
 * @name Highcharts.seriesTypes.trendline
 *
 * @augments Highcharts.Series
 */
var TrendLineIndicator = /** @class */ (function (_super) {
    __extends(TrendLineIndicator, _super);
    function TrendLineIndicator() {
        /* *
         *
         *  Static Properties
         *
         * */
        var _this = _super !== null && _super.apply(this,
            arguments) || this;
        _this.updateAllPoints = true;
        return _this;
    }
    /* *
     *
     *  Functions
     *
     * */
    TrendLineIndicator.prototype.getValues = function (series, params) {
        var orgXVal = series.xData,
            yVal = series.yData,
            xVal = [],
            LR = [],
            xData = [],
            yData = [],
            index = params.index;
        var numerator = 0,
            denominator = 0,
            xValSum = 0,
            yValSum = 0,
            counter = 0;
        // Create an array of consecutive xValues, (don't remove duplicates)
        for (var i = 0; i < orgXVal.length; i++) {
            if (i === 0 || orgXVal[i] !== orgXVal[i - 1]) {
                counter++;
            }
            xVal.push(counter);
        }
        for (var i = 0; i < xVal.length; i++) {
            xValSum += xVal[i];
            yValSum += (0,highcharts_commonjs_highcharts_commonjs2_highcharts_root_Highcharts_.isArray)(yVal[i]) ? yVal[i][index] : yVal[i];
        }
        var meanX = xValSum / xVal.length, meanY = yValSum / yVal.length;
        for (var i = 0; i < xVal.length; i++) {
            var y = (0,
                highcharts_commonjs_highcharts_commonjs2_highcharts_root_Highcharts_.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 (var i = 0; i < xVal.length; i++) {
            // Check if the xVal is already used
            if (orgXVal[i] === xData[xData.length - 1]) {
                continue;
            }
            var 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 {highstock} 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 = (0,highcharts_commonjs_highcharts_commonjs2_highcharts_root_Highcharts_.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
        }
    });
    return TrendLineIndicator;
}(SMAIndicator));
(0,highcharts_commonjs_highcharts_commonjs2_highcharts_root_Highcharts_.extend)(TrendLineIndicator.prototype, {
    nameBase: 'Trendline',
    nameComponents: void 0
});
highcharts_SeriesRegistry_commonjs_highcharts_SeriesRegistry_commonjs2_highcharts_SeriesRegistry_root_Highcharts_SeriesRegistry_default().registerSeriesType('trendline', TrendLineIndicator);
/* *
 *
 *  Default Export
 *
 * */
/** @internal */
/* harmony default export */ var 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/es5/es-modules/masters/indicators/trendline.src.js




/* harmony default export */ var trendline_src = ((highcharts_commonjs_highcharts_commonjs2_highcharts_root_Highcharts_default()));

__webpack_exports__ = __webpack_exports__["default"];
/******/ 	return __webpack_exports__;
/******/ })()
;
});