highcharts
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JavaScript charting framework
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JavaScript
/**
* @license Highstock JS v9.0.1 (2021-02-16)
*
* Indicator series type for Highstock
*
* (c) 2010-2021 Wojciech Chmiel
*
* License: www.highcharts.com/license
*/
;
(function (factory) {
if (typeof module === 'object' && module.exports) {
factory['default'] = factory;
module.exports = factory;
} else if (typeof define === 'function' && define.amd) {
define('highcharts/indicators/williams-r', ['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, 'Mixins/ReduceArray.js', [], function () {
/**
*
* (c) 2010-2021 Pawel Fus & Daniel Studencki
*
* License: www.highcharts.com/license
*
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
*
* */
var reduceArrayMixin = {
/**
* Get min value of array filled by OHLC data.
* @private
* @param {Array<*>} arr Array of OHLC points (arrays).
* @param {string} index Index of "low" value in point array.
* @return {number} Returns min value.
*/
minInArray: function (arr,
index) {
return arr.reduce(function (min,
target) {
return Math.min(min,
target[index]);
}, Number.MAX_VALUE);
},
/**
* Get max value of array filled by OHLC data.
* @private
* @param {Array<*>} arr Array of OHLC points (arrays).
* @param {string} index Index of "high" value in point array.
* @return {number} Returns max value.
*/
maxInArray: function (arr, index) {
return arr.reduce(function (max, target) {
return Math.max(max, target[index]);
}, -Number.MAX_VALUE);
},
/**
* Get extremes of array filled by OHLC data.
* @private
* @param {Array<*>} arr Array of OHLC points (arrays).
* @param {string} minIndex Index of "low" value in point array.
* @param {string} maxIndex Index of "high" value in point array.
* @return {Array<number,number>} Returns array with min and max value.
*/
getArrayExtremes: function (arr, minIndex, maxIndex) {
return arr.reduce(function (prev, target) {
return [
Math.min(prev[0], target[minIndex]),
Math.max(prev[1], target[maxIndex])
];
}, [Number.MAX_VALUE, -Number.MAX_VALUE]);
}
};
return reduceArrayMixin;
});
_registerModule(_modules, 'Stock/Indicators/WilliamsR/WilliamsRIndicator.js', [_modules['Mixins/ReduceArray.js'], _modules['Core/Series/SeriesRegistry.js'], _modules['Core/Utilities.js']], function (ReduceArrayMixin, SeriesRegistry, U) {
/* *
*
* 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 __());
};
})();
var getArrayExtremes = ReduceArrayMixin.getArrayExtremes;
var SMAIndicator = SeriesRegistry.seriesTypes.sma;
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
*
* */
/**
* 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
return WilliamsRIndicator;
});
_registerModule(_modules, 'masters/indicators/williams-r.src.js', [], function () {
});
}));