chore: version inicial del codigo fuente del LMS Estafeta
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/* *
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*
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* License: www.highcharts.com/license
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*
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* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
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*
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* */
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'use strict';
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import U from '../../Core/Utilities.js';
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var isArray = U.isArray, seriesType = U.seriesType;
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/* eslint-disable require-jsdoc */
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// Utils:
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function toFixed(a, n) {
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return parseFloat(a.toFixed(n));
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}
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/* eslint-enable require-jsdoc */
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/**
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* The RSI series type.
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*
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* @private
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* @class
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* @name Highcharts.seriesTypes.rsi
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*
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* @augments Highcharts.Series
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*/
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seriesType('rsi', 'sma',
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/**
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* Relative strength index (RSI) technical indicator. This series
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* requires the `linkedTo` option to be set and should be loaded after
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* the `stock/indicators/indicators.js` file.
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*
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* @sample stock/indicators/rsi
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* RSI indicator
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*
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* @extends plotOptions.sma
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* @since 6.0.0
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* @product highstock
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* @requires stock/indicators/indicators
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* @requires stock/indicators/rsi
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* @optionparent plotOptions.rsi
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*/
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{
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/**
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* @excluding index
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*/
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params: {
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period: 14,
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/**
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* Number of maximum decimals that are used in RSI calculations.
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*/
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decimals: 4
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}
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},
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/**
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* @lends Highcharts.Series#
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*/
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{
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getValues: function (series, params) {
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var period = params.period, xVal = series.xData, yVal = series.yData, yValLen = yVal ? yVal.length : 0, decimals = params.decimals,
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// RSI starts calculations from the second point
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// Cause we need to calculate change between two points
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range = 1, RSI = [], xData = [], yData = [], index = 3, gain = 0, loss = 0, RSIPoint, change, avgGain, avgLoss, i;
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// RSI requires close value
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if ((xVal.length < period) || !isArray(yVal[0]) ||
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yVal[0].length !== 4) {
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return;
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}
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// Calculate changes for first N points
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while (range < period) {
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change = toFixed(yVal[range][index] - yVal[range - 1][index], decimals);
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if (change > 0) {
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gain += change;
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}
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else {
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loss += Math.abs(change);
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}
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range++;
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}
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// Average for first n-1 points:
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avgGain = toFixed(gain / (period - 1), decimals);
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avgLoss = toFixed(loss / (period - 1), decimals);
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for (i = range; i < yValLen; i++) {
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change = toFixed(yVal[i][index] - yVal[i - 1][index], decimals);
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if (change > 0) {
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gain = change;
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loss = 0;
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}
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else {
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gain = 0;
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loss = Math.abs(change);
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}
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// Calculate smoothed averages, RS, RSI values:
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avgGain = toFixed((avgGain * (period - 1) + gain) / period, decimals);
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avgLoss = toFixed((avgLoss * (period - 1) + loss) / period, decimals);
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// If average-loss is equal zero, then by definition RSI is set
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// to 100:
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if (avgLoss === 0) {
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RSIPoint = 100;
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// If average-gain is equal zero, then by definition RSI is set
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// to 0:
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}
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else if (avgGain === 0) {
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RSIPoint = 0;
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}
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else {
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RSIPoint = toFixed(100 - (100 / (1 + (avgGain / avgLoss))), decimals);
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}
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RSI.push([xVal[i], RSIPoint]);
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xData.push(xVal[i]);
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yData.push(RSIPoint);
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}
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return {
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values: RSI,
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xData: xData,
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yData: yData
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};
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}
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});
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/**
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* A `RSI` series. If the [type](#series.rsi.type) option is not
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* specified, it is inherited from [chart.type](#chart.type).
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*
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* @extends series,plotOptions.rsi
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* @since 6.0.0
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* @product highstock
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* @excluding dataParser, dataURL
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* @requires stock/indicators/indicators
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* @requires stock/indicators/rsi
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* @apioption series.rsi
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*/
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''; // to include the above in the js output
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