highcharts
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JavaScript charting framework
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JavaScript
/* *
*
* License: www.highcharts.com/license
*
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
*
* */
;
import SeriesRegistry from '../../../Core/Series/SeriesRegistry.js';
const { sma: SMAIndicator, stochastic: StochasticIndicator } = SeriesRegistry.seriesTypes;
import U from '../../../Core/Utilities.js';
const { extend, merge } = U;
/* *
*
* Class
*
* */
/**
* The Slow Stochastic series type.
*
* @private
* @class
* @name Highcharts.seriesTypes.slowstochastic
*
* @augments Highcharts.Series
*/
class SlowStochasticIndicator extends StochasticIndicator {
/* *
*
* Functions
*
* */
getValues(series, params) {
const periods = params.periods, fastValues = super.getValues.call(this, series, params), slowValues = {
values: [],
xData: [],
yData: []
};
if (!fastValues) {
return;
}
slowValues.xData = fastValues.xData.slice(periods[1] - 1);
const fastYData = fastValues.yData.slice(periods[1] - 1);
// Get SMA(%D)
const smoothedValues = SMAIndicator.prototype.getValues.call(this, {
xData: slowValues.xData,
yData: fastYData
}, {
index: 1,
period: periods[2]
});
if (!smoothedValues) {
return;
}
// Format data
for (let i = 0, xDataLen = slowValues.xData.length; i < xDataLen; i++) {
slowValues.yData[i] = [
fastYData[i][1],
smoothedValues.yData[i - periods[2] + 1] || null
];
slowValues.values[i] = [
slowValues.xData[i],
fastYData[i][1],
smoothedValues.yData[i - periods[2] + 1] || null
];
}
return slowValues;
}
}
/* *
*
* Static Properties
*
* */
/**
* Slow Stochastic oscillator. This series requires the `linkedTo` option
* to be set and should be loaded after `stock/indicators/indicators.js`
* and `stock/indicators/stochastic.js` files.
*
* @sample stock/indicators/slow-stochastic
* Slow Stochastic oscillator
*
* @extends plotOptions.stochastic
* @since 8.0.0
* @product highstock
* @requires stock/indicators/indicators
* @requires stock/indicators/stochastic
* @requires stock/indicators/slow-stochastic
* @optionparent plotOptions.slowstochastic
*/
SlowStochasticIndicator.defaultOptions = merge(StochasticIndicator.defaultOptions, {
params: {
/**
* Periods for Slow Stochastic oscillator: [%K, %D, SMA(%D)].
*
* @type {Array<number,number,number>}
* @default [14, 3, 3]
*/
periods: [14, 3, 3]
}
});
extend(SlowStochasticIndicator.prototype, {
nameBase: 'Slow Stochastic'
});
SeriesRegistry.registerSeriesType('slowstochastic', SlowStochasticIndicator);
/* *
*
* Default Export
*
* */
export default SlowStochasticIndicator;
/* *
*
* API Options
*
* */
/**
* A Slow Stochastic indicator. If the [type](#series.slowstochastic.type)
* option is not specified, it is inherited from [chart.type](#chart.type).
*
* @extends series,plotOptions.slowstochastic
* @since 8.0.0
* @product highstock
* @requires stock/indicators/indicators
* @requires stock/indicators/stochastic
* @requires stock/indicators/slow-stochastic
* @apioption series.slowstochastic
*/
''; // To include the above in the js output