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. !!!!!!!
*
* */
;
var __extends = (this && this.__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 __());
};
})();
import ReduceArrayMixin from '../../../Mixins/ReduceArray.js';
var getArrayExtremes = ReduceArrayMixin.getArrayExtremes;
import SeriesRegistry from '../../../Core/Series/SeriesRegistry.js';
var SMAIndicator = SeriesRegistry.seriesTypes.sma;
import U from '../../../Core/Utilities.js';
var extend = U.extend, isArray = U.isArray, merge = U.merge;
/**
* The Williams %R series type.
*
* @private
* @class
* @name Highcharts.seriesTypes.williamsr
*
* @augments Highcharts.Series
*/
var WilliamsRIndicator = /** @class */ (function (_super) {
__extends(WilliamsRIndicator, _super);
function WilliamsRIndicator() {
var _this = _super !== null && _super.apply(this, arguments) || this;
_this.data = void 0;
_this.options = void 0;
_this.points = void 0;
return _this;
}
WilliamsRIndicator.prototype.getValues = function (series, params) {
var period = params.period, xVal = series.xData, yVal = series.yData, yValLen = yVal ? yVal.length : 0, WR = [], // 0- date, 1- Williams %R
xData = [], yData = [], slicedY, close = 3, low = 2, high = 1, extremes, R, HH, // Highest high value in period
LL, // Lowest low value in period
CC, // Current close value
i;
// Williams %R requires close value
if (xVal.length < period ||
!isArray(yVal[0]) ||
yVal[0].length !== 4) {
return;
}
// For a N-period, we start from N-1 point, to calculate Nth point
// That is why we later need to comprehend slice() elements list
// with (+1)
for (i = period - 1; i < yValLen; i++) {
slicedY = yVal.slice(i - period + 1, i + 1);
extremes = getArrayExtremes(slicedY, low, high);
LL = extremes[0];
HH = extremes[1];
CC = yVal[i][close];
R = ((HH - CC) / (HH - LL)) * -100;
if (xVal[i]) {
WR.push([xVal[i], R]);
xData.push(xVal[i]);
yData.push(R);
}
}
return {
values: WR,
xData: xData,
yData: yData
};
};
/**
* Williams %R. This series requires the `linkedTo` option to be
* set and should be loaded after the `stock/indicators/indicators.js`.
*
* @sample {highstock} stock/indicators/williams-r
* Williams %R
*
* @extends plotOptions.sma
* @since 7.0.0
* @product highstock
* @excluding allAreas, colorAxis, joinBy, keys, navigatorOptions,
* pointInterval, pointIntervalUnit, pointPlacement,
* pointRange, pointStart, showInNavigator, stacking
* @requires stock/indicators/indicators
* @requires stock/indicators/williams-r
* @optionparent plotOptions.williamsr
*/
WilliamsRIndicator.defaultOptions = merge(SMAIndicator.defaultOptions, {
/**
* Paramters used in calculation of Williams %R series points.
* @excluding index
*/
params: {
/**
* Period for Williams %R oscillator
*/
period: 14
}
});
return WilliamsRIndicator;
}(SMAIndicator));
extend(WilliamsRIndicator.prototype, {
nameBase: 'Williams %R'
});
SeriesRegistry.registerSeriesType('williamsr', WilliamsRIndicator);
/* *
*
* Default Export
*
* */
export default WilliamsRIndicator;
/**
* A `Williams %R Oscillator` series. If the [type](#series.williamsr.type)
* option is not specified, it is inherited from [chart.type](#chart.type).
*
* @extends series,plotOptions.williamsr
* @since 7.0.0
* @product highstock
* @excluding allAreas, colorAxis, dataParser, dataURL, joinBy, keys,
* navigatorOptions, pointInterval, pointIntervalUnit,
* pointPlacement, pointRange, pointStart, showInNavigator, stacking
* @requires stock/indicators/indicators
* @requires stock/indicators/williams-r
* @apioption series.williamsr
*/
''; // adds doclets above to the transpiled file