text: /**
   * @license Highstock JS v7.2.0 (2019-09-03)
   *
   * Indicator series type for Highstock
   *
   * (c) 2010-2019 Rafał Sebestjański
   *
   * 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/dema', ['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/indicator-required.js', [_modules['parts/Globals.js']], function (H) {
          /**
           *
           *  (c) 2010-2019 Daniel Studencki
           *
           *  License: www.highcharts.com/license
           *
           *  !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
           *
           * */
          var error = H.error;
          /* eslint-disable no-invalid-this, valid-jsdoc */
          var requiredIndicatorMixin = {
              /**
               * Check whether given indicator is loaded, else throw error.
               * @private
               * @param {Highcharts.Indicator} indicator
               *        Indicator constructor function.
               * @param {string} requiredIndicator
               *        Required indicator type.
               * @param {string} type
               *        Type of indicator where function was called (parent).
               * @param {Highcharts.IndicatorConstructorFunction} callback
               *        Callback which is triggered if the given indicator is loaded.
               *        Takes indicator as an argument.
               * @param {string} errMessage
               *        Error message that will be logged in console.
               * @return {boolean}
               *         Returns false when there is no required indicator loaded.
               */
              isParentLoaded: function (indicator, requiredIndicator, type, callback, errMessage) {
                  if (indicator) {
                      return callback ? callback(indicator) : true;
                  }
                  error(errMessage || this.generateMessage(type, requiredIndicator));
                  return false;
              },
              /**
               * @private
               * @param {string} indicatorType
               *        Indicator type
               * @param {string} required
               *        Required indicator
               * @return {string}
               *         Error message
               */
              generateMessage: function (indicatorType, required) {
                  return 'Error: "' + indicatorType +
                      '" indicator type requires "' + required +
                      '" indicator loaded before. Please read docs: ' +
                      'https://api.highcharts.com/highstock/plotOptions.' +
                      indicatorType;
              }
          };
  
          return requiredIndicatorMixin;
      });
      _registerModule(_modules, 'indicators/dema.src.js', [_modules['parts/Globals.js'], _modules['parts/Utilities.js'], _modules['mixins/indicator-required.js']], function (H, U, requiredIndicatorMixin) {
          /* *
           *
           *  License: www.highcharts.com/license
           *
           * */
  
  
  
          var isArray = U.isArray;
  
  
          var EMAindicator = H.seriesTypes.ema,
              requiredIndicator = requiredIndicatorMixin,
              correctFloat = H.correctFloat;
  
          /**
           * The DEMA series Type
           *
           * @private
           * @class
           * @name Highcharts.seriesTypes.dema
           *
           * @augments Highcharts.Series
           */
          H.seriesType(
              'dema',
              'ema',
              /**
               * Double exponential moving average (DEMA) indicator. This series requires
               * `linkedTo` option to be set and should be loaded after the
               * `stock/indicators/indicators.js` and `stock/indicators/ema.js`.
               *
               * @sample {highstock} stock/indicators/dema
               *         DEMA indicator
               *
               * @extends      plotOptions.ema
               * @since        7.0.0
               * @product      highstock
               * @excluding    allAreas, colorAxis, compare, compareBase, joinBy, keys,
               *               navigatorOptions, pointInterval, pointIntervalUnit,
               *               pointPlacement, pointRange, pointStart, showInNavigator,
               *               stacking
               * @optionparent plotOptions.dema
               */
              {},
              /**
               * @lends Highcharts.Series#
               */
              {
                  init: function () {
                      var args = arguments,
                          ctx = this;
  
                      requiredIndicator.isParentLoaded(
                          EMAindicator,
                          'ema',
                          ctx.type,
                          function (indicator) {
                              indicator.prototype.init.apply(ctx, args);
                          }
                      );
                  },
                  getEMA: function (
                      yVal,
                      prevEMA,
                      SMA,
                      index,
                      i,
                      xVal
                  ) {
  
                      return EMAindicator.prototype.calculateEma(
                          xVal || [],
                          yVal,
                          i === undefined ? 1 : i,
                          this.chart.series[0].EMApercent,
                          prevEMA,
                          index === undefined ? -1 : index,
                          SMA
                      );
                  },
                  getValues: function (series, params) {
                      var period = params.period,
                          doubledPeriod = 2 * period,
                          xVal = series.xData,
                          yVal = series.yData,
                          yValLen = yVal ? yVal.length : 0,
                          index = -1,
                          accumulatePeriodPoints = 0,
                          SMA = 0,
                          DEMA = [],
                          xDataDema = [],
                          yDataDema = [],
                          EMA = 0,
                          // EMA(EMA)
                          EMAlevel2,
                          // EMA of previous point
                          prevEMA,
                          prevEMAlevel2,
                          // EMA values array
                          EMAvalues = [],
                          i,
                          DEMAPoint;
  
                      series.EMApercent = (2 / (period + 1));
  
                      // Check period, if bigger than EMA points length, skip
                      if (yValLen < 2 * period - 1) {
                          return false;
                      }
  
                      // Switch index for OHLC / Candlestick / Arearange
                      if (isArray(yVal[0])) {
                          index = params.index ? params.index : 0;
                      }
  
                      // Accumulate first N-points
                      accumulatePeriodPoints =
                          EMAindicator.prototype.accumulatePeriodPoints(
                              period,
                              index,
                              yVal
                          );
  
                      // first point
                      SMA = accumulatePeriodPoints / period;
                      accumulatePeriodPoints = 0;
  
                      // Calculate value one-by-one for each period in visible data
                      for (i = period; i < yValLen + 2; i++) {
                          if (i < yValLen + 1) {
                              EMA = this.getEMA(
                                  yVal,
                                  prevEMA,
                                  SMA,
                                  index,
                                  i
                              )[1];
                              EMAvalues.push(EMA);
                          }
                          prevEMA = EMA;
  
                          // Summing first period points for EMA(EMA)
                          if (i < doubledPeriod) {
                              accumulatePeriodPoints += EMA;
                          } else {
                              // Calculate DEMA
                              // First DEMA point
                              if (i === doubledPeriod) {
                                  SMA = accumulatePeriodPoints / period;
                              }
                              EMA = EMAvalues[i - period - 1];
                              EMAlevel2 = this.getEMA(
                                  [EMA],
                                  prevEMAlevel2,
                                  SMA
                              )[1];
                              DEMAPoint = [
                                  xVal[i - 2],
                                  correctFloat(2 * EMA - EMAlevel2)
                              ];
                              DEMA.push(DEMAPoint);
                              xDataDema.push(DEMAPoint[0]);
                              yDataDema.push(DEMAPoint[1]);
                              prevEMAlevel2 = EMAlevel2;
                          }
                      }
  
                      return {
                          values: DEMA,
                          xData: xDataDema,
                          yData: yDataDema
                      };
                  }
              }
          );
  
          /**
           * A `DEMA` series. If the [type](#series.ema.type) option is not
           * specified, it is inherited from [chart.type](#chart.type).
           *
           * @extends   series,plotOptions.ema
           * @since     7.0.0
           * @product   highstock
           * @excluding allAreas, colorAxis, compare, compareBase, dataParser, dataURL,
           *            joinBy, keys, navigatorOptions, pointInterval, pointIntervalUnit,
           *            pointPlacement, pointRange, pointStart, showInNavigator, stacking
           * @apioption series.dema
           */
  
      });
      _registerModule(_modules, 'masters/indicators/dema.src.js', [], function () {
  
  
      });
  }));