Exemple #1
0
        /// <summary>
        /// Linear regression is used to calculate a best fit line for the price data. In addition an upper and lower band is added by calculating the standard deviation of prices from the regression line.
        /// </summary>
        /// <returns></returns>
        public RegressionChannel RegressionChannel(Data.IDataSeries input, int period, double width)
        {
            if (cacheRegressionChannel != null)
            {
                for (int idx = 0; idx < cacheRegressionChannel.Length; idx++)
                {
                    if (cacheRegressionChannel[idx].Period == period && Math.Abs(cacheRegressionChannel[idx].Width - width) <= double.Epsilon && cacheRegressionChannel[idx].EqualsInput(input))
                    {
                        return(cacheRegressionChannel[idx]);
                    }
                }
            }

            lock (checkRegressionChannel)
            {
                checkRegressionChannel.Period = period;
                period = checkRegressionChannel.Period;
                checkRegressionChannel.Width = width;
                width = checkRegressionChannel.Width;

                if (cacheRegressionChannel != null)
                {
                    for (int idx = 0; idx < cacheRegressionChannel.Length; idx++)
                    {
                        if (cacheRegressionChannel[idx].Period == period && Math.Abs(cacheRegressionChannel[idx].Width - width) <= double.Epsilon && cacheRegressionChannel[idx].EqualsInput(input))
                        {
                            return(cacheRegressionChannel[idx]);
                        }
                    }
                }

                RegressionChannel indicator = new RegressionChannel();
                indicator.BarsRequired        = BarsRequired;
                indicator.CalculateOnBarClose = CalculateOnBarClose;
#if NT7
                indicator.ForceMaximumBarsLookBack256 = ForceMaximumBarsLookBack256;
                indicator.MaximumBarsLookBack         = MaximumBarsLookBack;
#endif
                indicator.Input  = input;
                indicator.Period = period;
                indicator.Width  = width;
                Indicators.Add(indicator);
                indicator.SetUp();

                RegressionChannel[] tmp = new RegressionChannel[cacheRegressionChannel == null ? 1 : cacheRegressionChannel.Length + 1];
                if (cacheRegressionChannel != null)
                {
                    cacheRegressionChannel.CopyTo(tmp, 0);
                }
                tmp[tmp.Length - 1]    = indicator;
                cacheRegressionChannel = tmp;
                return(indicator);
            }
        }
        /// <summary>
        /// Linear regression is used to calculate a best fit line for the price data. In addition an upper and lower band is added by calculating the standard deviation of prices from the regression line.
        /// </summary>
        /// <returns></returns>
        public RegressionChannel RegressionChannel(Data.IDataSeries input, int period, double width)
        {
            if (cacheRegressionChannel != null)
                for (int idx = 0; idx < cacheRegressionChannel.Length; idx++)
                    if (cacheRegressionChannel[idx].Period == period && Math.Abs(cacheRegressionChannel[idx].Width - width) <= double.Epsilon && cacheRegressionChannel[idx].EqualsInput(input))
                        return cacheRegressionChannel[idx];

            lock (checkRegressionChannel)
            {
                checkRegressionChannel.Period = period;
                period = checkRegressionChannel.Period;
                checkRegressionChannel.Width = width;
                width = checkRegressionChannel.Width;

                if (cacheRegressionChannel != null)
                    for (int idx = 0; idx < cacheRegressionChannel.Length; idx++)
                        if (cacheRegressionChannel[idx].Period == period && Math.Abs(cacheRegressionChannel[idx].Width - width) <= double.Epsilon && cacheRegressionChannel[idx].EqualsInput(input))
                            return cacheRegressionChannel[idx];

                RegressionChannel indicator = new RegressionChannel();
                indicator.BarsRequired = BarsRequired;
                indicator.CalculateOnBarClose = CalculateOnBarClose;
#if NT7
                indicator.ForceMaximumBarsLookBack256 = ForceMaximumBarsLookBack256;
                indicator.MaximumBarsLookBack = MaximumBarsLookBack;
#endif
                indicator.Input = input;
                indicator.Period = period;
                indicator.Width = width;
                Indicators.Add(indicator);
                indicator.SetUp();

                RegressionChannel[] tmp = new RegressionChannel[cacheRegressionChannel == null ? 1 : cacheRegressionChannel.Length + 1];
                if (cacheRegressionChannel != null)
                    cacheRegressionChannel.CopyTo(tmp, 0);
                tmp[tmp.Length - 1] = indicator;
                cacheRegressionChannel = tmp;
                return indicator;
            }
        }