Normalized Intraday Intensity indicator

John Bollinger's Normalized Intraday Intensity Oscillator. 

This custom indicator attempts to measure intraday intensity for both bullish and bearish sentiment. 

The indicator displays positive values for bullish intensity and negative values for bearish intensity. This custom indicator is also used to identify trade zones.

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

namespace cAlgo
{
    [Levels(0)]
    [Cloud("NII", "LevelZero", FirstColor = "Green", SecondColor = "Red", Opacity = 0.15)]
    [Indicator(IsOverlay = false, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class mNormalizedIntradayIntensity : Indicator
    {
        [Parameter("Period (10)", DefaultValue = 10)]
        public int inpPeriod { get; set; }

        [Output("NII", IsHistogram = false, LineColor = "Black", Thickness = 1)]
        public IndicatorDataSeries outNII { get; set; }
        [Output("LevelZero", LineColor = "Transparent", PlotType = PlotType.Line, Thickness = 1)]
        public IndicatorDataSeries outLevelZero { get; set; }

        private IndicatorDataSeries _raw, _nii;
        private MovingAverage _smoothvol, _smoothraw;


        protected override void Initialize()
        {
            _raw = CreateDataSeries();
            _nii = CreateDataSeries();
            _smoothvol = Indicators.MovingAverage(Bars.TickVolumes, inpPeriod, MovingAverageType.Simple);
            _smoothraw = Indicators.MovingAverage(_raw, inpPeriod, MovingAverageType.Simple);
        }

        public override void Calculate(int i)
        {
            _raw[i] = (Bars.HighPrices[i] - Bars.LowPrices[i] != 0 ? (2.0 * Bars.ClosePrices[i] - Bars.HighPrices[i] - Bars.LowPrices[i]) / (Bars.HighPrices[i] - Bars.LowPrices[i]) * Bars.TickVolumes[i] : 0);
            _nii[i] = _smoothvol.Result[i] != 0 ? _smoothraw.Result[i] / _smoothvol.Result[i] * 100.0 : 0;

            outNII[i] = _nii[i];
            outLevelZero[i] = 0;
        }
    }
}