MACD DiNapoli indicator

using System;
using cAlgo.API;
using cAlgo.API.Internals;
using cAlgo.API.Indicators;
using cAlgo.Indicators;

namespace cAlgo
{
    [Levels(0)]
    [Cloud("MACD", "Signal", FirstColor = "Green", SecondColor = "Red", Opacity = 0.1)]  
    [Indicator(IsOverlay = false, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class mMACDdinapoli : Indicator
    {
        [Parameter("Long Cycle", DefaultValue = 17.5185)]
        public double inpLongCycle { get; set; }
        [Parameter("Short Cycle", DefaultValue = 8.3896)]
        public double inpShortCycle { get; set; }
        [Parameter("Signal Length", DefaultValue = 9.0503)]
        public double inpSignalLength { get; set; }

        [Output("MACD", LineColor = "Black", LineStyle = LineStyle.Solid, Thickness = 1)]
        public IndicatorDataSeries outMACD { get; set; }
        [Output("Signal", LineColor = "Red", LineStyle = LineStyle.Solid, Thickness = 1)]
        public IndicatorDataSeries outSignal { get; set; }
        [Output("Histogram", LineColor = "Gray", PlotType = PlotType.Histogram, Thickness = 3)]
        public IndicatorDataSeries outHist { get; set; }

        private IndicatorDataSeries _fastcomponent, _slowcomponent, _macd, _signal, _histogram;


        protected override void Initialize()
        {
            _fastcomponent = CreateDataSeries();
            _slowcomponent = CreateDataSeries();
            _macd = CreateDataSeries();
            _signal = CreateDataSeries();
            _histogram = CreateDataSeries();
        }

        public override void Calculate(int i)
        {
            _fastcomponent[i] = i>1 ? _fastcomponent[i-1] + 2.0 / (1.0 + inpShortCycle) * (Bars.ClosePrices[i] - _fastcomponent[i-1]) : Bars.ClosePrices[i] - Bars.TypicalPrices[i];
            _slowcomponent[i] = i>1 ? _slowcomponent[i-1] + 2.0 / (1.0 + inpLongCycle) * (Bars.ClosePrices[i] - _slowcomponent[i-1]) : Bars.ClosePrices[i] - Bars.TypicalPrices[i];
            _macd[i] = _fastcomponent[i] - _slowcomponent[i];
            _signal[i] = i>1 ? _signal[i-1] + 2.0 / (1 + inpSignalLength) * (_macd[i] - _signal[i-1]) : _fastcomponent[i]+_macd[i];
            _histogram[i] = i > 5 ? _macd[i] - _signal[i] : 0;
            
            outMACD[i] = _macd[i];
            outSignal[i] = _signal[i];
            outHist[i] = _histogram[i];
        }
    }
}