Iba Smooth indicator

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

namespace cAlgo
{
    [Levels(+50,0,-50)]
    [Indicator(IsOverlay = false, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class mIbaSmooth : Indicator
    {
        [Parameter("Fast Period (5)", DefaultValue = 5)]
        public int inpPeriodFast { get; set; }
        [Parameter("Slow Period (20)", DefaultValue = 20)]
        public int inpPeriodSlow { get; set; }
        [Parameter("Oscillate Period (15)", DefaultValue = 15)]
        public int inpPeriodOscillate { get; set; }

        [Output("Fast Component", LineColor = "Black", PlotType = PlotType.Line, LineStyle = LineStyle.Solid, Thickness = 1)]
        public IndicatorDataSeries outFastComponent { get; set; }
        [Output("Slow Component", LineColor = "Red", PlotType = PlotType.Line, LineStyle = LineStyle.Solid, Thickness = 1)]
        public IndicatorDataSeries outSlowComponent { get; set; }
        
        private MovingAverage _smoothfast, _smoothslow;
        private IndicatorDataSeries _rawfast, _rawslow, _oscfast, _oscslow;
        private RelativeStrengthIndex _rsifast, _rsislow;
        

        protected override void Initialize()
        {
            _smoothfast = Indicators.MovingAverage(Bars.ClosePrices, inpPeriodFast, MovingAverageType.Exponential);
            _smoothslow = Indicators.MovingAverage(Bars.ClosePrices, inpPeriodSlow, MovingAverageType.Exponential);
            _rawfast = CreateDataSeries();
            _rawslow = CreateDataSeries();
            _rsifast = Indicators.RelativeStrengthIndex(_rawfast, inpPeriodOscillate);
            _rsislow = Indicators.RelativeStrengthIndex(_rawslow, inpPeriodSlow);
            _oscfast = CreateDataSeries();
            _oscslow = CreateDataSeries();
        }

        public override void Calculate(int i)
        {
            _rawfast[i] = _smoothfast.Result[i] - _smoothslow.Result[i];
            _rawslow[i] = _smoothslow.Result[i];
            _oscfast[i] = i>inpPeriodOscillate ? _rsifast.Result[i] - 50.0 : 0;
            _oscslow[i] = i>inpPeriodOscillate ? _rsislow.Result[i] - 50.0 : 0;

            outFastComponent[i] = _oscfast[i];
            outSlowComponent[i] = _oscslow[i];
        }
    }
}