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/**
* @license Highcharts JS v7.1.1 (2019-04-09)
*
* Indicator series type for Highstock
*
* (c) 2010-2019 Sebastian Bochan
*
* 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/momentum', ['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, 'indicators/momentum.src.js', [_modules['parts/Globals.js']], function (H) {
/* *
*
* License: www.highcharts.com/license
*
* */
var isArray = H.isArray,
seriesType = H.seriesType;
function populateAverage(points, xVal, yVal, i, period) {
var mmY = yVal[i - 1][3] - yVal[i - period - 1][3],
mmX = xVal[i - 1];
points.shift(); // remove point until range < period
return [mmX, mmY];
}
/**
* The Momentum series type.
*
* @private
* @class
* @name Highcharts.seriesTypes.momentum
*
* @augments Highcharts.Series
*/
seriesType(
'momentum',
'sma',
/**
* Momentum. This series requires `linkedTo` option to be set.
*
* @sample stock/indicators/momentum
* Momentum indicator
*
* @extends plotOptions.sma
* @since 6.0.0
* @product highstock
* @optionparent plotOptions.momentum
*/
{
params: {
period: 14
}
},
/**
* @lends Highcharts.Series#
*/
{
nameBase: 'Momentum',
getValues: function (series, params) {
var period = params.period,
xVal = series.xData,
yVal = series.yData,
yValLen = yVal ? yVal.length : 0,
xValue = xVal[0],
yValue = yVal[0],
MM = [],
xData = [],
yData = [],
index,
i,
points,
MMPoint;
if (xVal.length <= period) {
return false;
}
// Switch index for OHLC / Candlestick / Arearange
if (isArray(yVal[0])) {
yValue = yVal[0][3];
} else {
return false;
}
// Starting point
points = [
[xValue, yValue]
];
// Calculate value one-by-one for each period in visible data
for (i = (period + 1); i < yValLen; i++) {
MMPoint = populateAverage(points, xVal, yVal, i, period, index);
MM.push(MMPoint);
xData.push(MMPoint[0]);
yData.push(MMPoint[1]);
}
MMPoint = populateAverage(points, xVal, yVal, i, period, index);
MM.push(MMPoint);
xData.push(MMPoint[0]);
yData.push(MMPoint[1]);
return {
values: MM,
xData: xData,
yData: yData
};
}
}
);
/**
* A `Momentum` series. If the [type](#series.momentum.type) option is not
* specified, it is inherited from [chart.type](#chart.type).
*
* @extends series,plotOptions.momentum
* @since 6.0.0
* @excluding dataParser, dataURL
* @product highstock
* @apioption series.momentum
*/
});
_registerModule(_modules, 'masters/indicators/momentum.src.js', [], function () {
});
}));