Relative Momentum Index indicator free

by mfejza in category Oscilator at 08/09/2022
Description

Relative Momentum Index indicator script. This indicator was originally developed by Roger Altman (Stocks & Commodities V. 11:2 (57-60)).

Use this indicator as trade zones; for long when indicator value is above level 70; for short when indicator value is below level 30

 

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Formula / Source Code
Language: C#
Trading Platform: cAlgocTrader

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

namespace cAlgo
{
    [Levels(30, 50, 70)]
    [Indicator(IsOverlay = false, AccessRights = AccessRights.None)]
    public class mRelativeMomentumIndex : Indicator
    {
        [Parameter("RMI Periods (14)", DefaultValue = 7)]
        public int inpPeriodsRMI { get; set; }
        [Parameter("Momentum Periods (10)", DefaultValue = 5)]
        public int inpPeriodMomentum { get; set; }

        [Output("Relative Momentum Index", LineColor = "Black", PlotType = PlotType.Line, Thickness = 1)]
        public IndicatorDataSeries outRMI { get; set; }

        private IndicatorDataSeries _bulls, _bears, _rmi;
        private double delta;


        protected override void Initialize()
        {
            _bulls = CreateDataSeries();
            _bears = CreateDataSeries();
            _rmi = CreateDataSeries();
        }

        public override void Calculate(int i)
        {
            delta = i > inpPeriodMomentum ? Bars.ClosePrices[i] - Bars.ClosePrices[i - inpPeriodMomentum] : Bars.ClosePrices[i] - Bars.TypicalPrices[i];

            _bulls[i] = ((i > 1 ? _bulls[i - 1] : 50.0) * (inpPeriodsRMI - 1) + (delta > 0.0 ? +delta : 0.0)) / inpPeriodsRMI;
            _bears[i] = ((i > 1 ? _bears[i - 1] : 50.0) * (inpPeriodsRMI - 1) + (delta < 0.0 ? -delta : 0.0)) / inpPeriodsRMI;

            if (_bears[i] != 0.0)
                _rmi[i] = 100.0 - 100.0 / (1 + _bulls[i] / _bears[i]);
            else
                _rmi[i] = 50.0;

            outRMI[i] = _rmi[i];
        }
    }
}
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