/// <summary>
        /// VPIN indicator
        /// </summary>
        /// <returns></returns>
        public ZZVPINwithMinuteBar ZZVPINwithMinuteBar(Data.IDataSeries input, int cdfsamplesize, int sampleSize, int volBucketSize)
        {
            if (cacheZZVPINwithMinuteBar != null)
            {
                for (int idx = 0; idx < cacheZZVPINwithMinuteBar.Length; idx++)
                {
                    if (cacheZZVPINwithMinuteBar[idx].Cdfsamplesize == cdfsamplesize && cacheZZVPINwithMinuteBar[idx].SampleSize == sampleSize && cacheZZVPINwithMinuteBar[idx].VolBucketSize == volBucketSize && cacheZZVPINwithMinuteBar[idx].EqualsInput(input))
                    {
                        return(cacheZZVPINwithMinuteBar[idx]);
                    }
                }
            }

            lock (checkZZVPINwithMinuteBar)
            {
                checkZZVPINwithMinuteBar.Cdfsamplesize = cdfsamplesize;
                cdfsamplesize = checkZZVPINwithMinuteBar.Cdfsamplesize;
                checkZZVPINwithMinuteBar.SampleSize = sampleSize;
                sampleSize = checkZZVPINwithMinuteBar.SampleSize;
                checkZZVPINwithMinuteBar.VolBucketSize = volBucketSize;
                volBucketSize = checkZZVPINwithMinuteBar.VolBucketSize;

                if (cacheZZVPINwithMinuteBar != null)
                {
                    for (int idx = 0; idx < cacheZZVPINwithMinuteBar.Length; idx++)
                    {
                        if (cacheZZVPINwithMinuteBar[idx].Cdfsamplesize == cdfsamplesize && cacheZZVPINwithMinuteBar[idx].SampleSize == sampleSize && cacheZZVPINwithMinuteBar[idx].VolBucketSize == volBucketSize && cacheZZVPINwithMinuteBar[idx].EqualsInput(input))
                        {
                            return(cacheZZVPINwithMinuteBar[idx]);
                        }
                    }
                }

                ZZVPINwithMinuteBar indicator = new ZZVPINwithMinuteBar();
                indicator.BarsRequired        = BarsRequired;
                indicator.CalculateOnBarClose = CalculateOnBarClose;
#if NT7
                indicator.ForceMaximumBarsLookBack256 = ForceMaximumBarsLookBack256;
                indicator.MaximumBarsLookBack         = MaximumBarsLookBack;
#endif
                indicator.Input         = input;
                indicator.Cdfsamplesize = cdfsamplesize;
                indicator.SampleSize    = sampleSize;
                indicator.VolBucketSize = volBucketSize;
                Indicators.Add(indicator);
                indicator.SetUp();

                ZZVPINwithMinuteBar[] tmp = new ZZVPINwithMinuteBar[cacheZZVPINwithMinuteBar == null ? 1 : cacheZZVPINwithMinuteBar.Length + 1];
                if (cacheZZVPINwithMinuteBar != null)
                {
                    cacheZZVPINwithMinuteBar.CopyTo(tmp, 0);
                }
                tmp[tmp.Length - 1]      = indicator;
                cacheZZVPINwithMinuteBar = tmp;
                return(indicator);
            }
        }
        /// <summary>
        /// VPIN indicator
        /// </summary>
        /// <returns></returns>
        public ZZVPINwithMinuteBar ZZVPINwithMinuteBar(Data.IDataSeries input, int cdfsamplesize, int sampleSize, int volBucketSize)
        {
            if (cacheZZVPINwithMinuteBar != null)
                for (int idx = 0; idx < cacheZZVPINwithMinuteBar.Length; idx++)
                    if (cacheZZVPINwithMinuteBar[idx].Cdfsamplesize == cdfsamplesize && cacheZZVPINwithMinuteBar[idx].SampleSize == sampleSize && cacheZZVPINwithMinuteBar[idx].VolBucketSize == volBucketSize && cacheZZVPINwithMinuteBar[idx].EqualsInput(input))
                        return cacheZZVPINwithMinuteBar[idx];

            lock (checkZZVPINwithMinuteBar)
            {
                checkZZVPINwithMinuteBar.Cdfsamplesize = cdfsamplesize;
                cdfsamplesize = checkZZVPINwithMinuteBar.Cdfsamplesize;
                checkZZVPINwithMinuteBar.SampleSize = sampleSize;
                sampleSize = checkZZVPINwithMinuteBar.SampleSize;
                checkZZVPINwithMinuteBar.VolBucketSize = volBucketSize;
                volBucketSize = checkZZVPINwithMinuteBar.VolBucketSize;

                if (cacheZZVPINwithMinuteBar != null)
                    for (int idx = 0; idx < cacheZZVPINwithMinuteBar.Length; idx++)
                        if (cacheZZVPINwithMinuteBar[idx].Cdfsamplesize == cdfsamplesize && cacheZZVPINwithMinuteBar[idx].SampleSize == sampleSize && cacheZZVPINwithMinuteBar[idx].VolBucketSize == volBucketSize && cacheZZVPINwithMinuteBar[idx].EqualsInput(input))
                            return cacheZZVPINwithMinuteBar[idx];

                ZZVPINwithMinuteBar indicator = new ZZVPINwithMinuteBar();
                indicator.BarsRequired = BarsRequired;
                indicator.CalculateOnBarClose = CalculateOnBarClose;
#if NT7
                indicator.ForceMaximumBarsLookBack256 = ForceMaximumBarsLookBack256;
                indicator.MaximumBarsLookBack = MaximumBarsLookBack;
#endif
                indicator.Input = input;
                indicator.Cdfsamplesize = cdfsamplesize;
                indicator.SampleSize = sampleSize;
                indicator.VolBucketSize = volBucketSize;
                Indicators.Add(indicator);
                indicator.SetUp();

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