/// <summary>
        /// Chaikin Oscillator.
        /// </summary>
        /// <returns></returns>
        public ChaikinOscillator ChaikinOscillator(Data.IDataSeries input, int fast, int slow)
        {
            if (cacheChaikinOscillator != null)
            {
                for (int idx = 0; idx < cacheChaikinOscillator.Length; idx++)
                {
                    if (cacheChaikinOscillator[idx].Fast == fast && cacheChaikinOscillator[idx].Slow == slow && cacheChaikinOscillator[idx].EqualsInput(input))
                    {
                        return(cacheChaikinOscillator[idx]);
                    }
                }
            }

            lock (checkChaikinOscillator)
            {
                checkChaikinOscillator.Fast = fast;
                fast = checkChaikinOscillator.Fast;
                checkChaikinOscillator.Slow = slow;
                slow = checkChaikinOscillator.Slow;

                if (cacheChaikinOscillator != null)
                {
                    for (int idx = 0; idx < cacheChaikinOscillator.Length; idx++)
                    {
                        if (cacheChaikinOscillator[idx].Fast == fast && cacheChaikinOscillator[idx].Slow == slow && cacheChaikinOscillator[idx].EqualsInput(input))
                        {
                            return(cacheChaikinOscillator[idx]);
                        }
                    }
                }

                ChaikinOscillator indicator = new ChaikinOscillator();
                indicator.BarsRequired        = BarsRequired;
                indicator.CalculateOnBarClose = CalculateOnBarClose;
#if NT7
                indicator.ForceMaximumBarsLookBack256 = ForceMaximumBarsLookBack256;
                indicator.MaximumBarsLookBack         = MaximumBarsLookBack;
#endif
                indicator.Input = input;
                indicator.Fast  = fast;
                indicator.Slow  = slow;
                Indicators.Add(indicator);
                indicator.SetUp();

                ChaikinOscillator[] tmp = new ChaikinOscillator[cacheChaikinOscillator == null ? 1 : cacheChaikinOscillator.Length + 1];
                if (cacheChaikinOscillator != null)
                {
                    cacheChaikinOscillator.CopyTo(tmp, 0);
                }
                tmp[tmp.Length - 1]    = indicator;
                cacheChaikinOscillator = tmp;
                return(indicator);
            }
        }
        /// <summary>
        /// Chaikin Oscillator.
        /// </summary>
        /// <returns></returns>
        public ChaikinOscillator ChaikinOscillator(Data.IDataSeries input, int fast, int slow)
        {
            if (cacheChaikinOscillator != null)
                for (int idx = 0; idx < cacheChaikinOscillator.Length; idx++)
                    if (cacheChaikinOscillator[idx].Fast == fast && cacheChaikinOscillator[idx].Slow == slow && cacheChaikinOscillator[idx].EqualsInput(input))
                        return cacheChaikinOscillator[idx];

            lock (checkChaikinOscillator)
            {
                checkChaikinOscillator.Fast = fast;
                fast = checkChaikinOscillator.Fast;
                checkChaikinOscillator.Slow = slow;
                slow = checkChaikinOscillator.Slow;

                if (cacheChaikinOscillator != null)
                    for (int idx = 0; idx < cacheChaikinOscillator.Length; idx++)
                        if (cacheChaikinOscillator[idx].Fast == fast && cacheChaikinOscillator[idx].Slow == slow && cacheChaikinOscillator[idx].EqualsInput(input))
                            return cacheChaikinOscillator[idx];

                ChaikinOscillator indicator = new ChaikinOscillator();
                indicator.BarsRequired = BarsRequired;
                indicator.CalculateOnBarClose = CalculateOnBarClose;
#if NT7
                indicator.ForceMaximumBarsLookBack256 = ForceMaximumBarsLookBack256;
                indicator.MaximumBarsLookBack = MaximumBarsLookBack;
#endif
                indicator.Input = input;
                indicator.Fast = fast;
                indicator.Slow = slow;
                Indicators.Add(indicator);
                indicator.SetUp();

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