Average True Range Indicator | Algorithmic Forex Trading

Average True Range free

by qualitiedx2 in category Trend at 17/02/2012

Description

The range of a day's trading is simply high − low. The true range extends it to yesterday's closing price if it was outside of today's range. true range = max(high, close(prev) - min(low, close(prev) The true range is the largest of the: * Most recent period's high less the most recent period's low * Absolute value of the most recent period's high less the previous close * Absolute value of the most recent period's low less the previous close.

Average True Range

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Formula / Source Code

Language: C#
Trading Platform: cAlgo, cTrader

using cAlgo.API;
using cAlgo.API.Indicators;

namespace cAlgo.Indicators
{
    [Indicator(IsOverlay = false, ScalePrecision = 5, AccessRights = AccessRights.None)]
    public class AverageTrueRange : Indicator
    {
        private TrueRange _tri;

        [Parameter(DefaultValue = 14, MinValue = 2)]
        public int Period { get; set; }

        [Output("ATR", Color = Colors.Orange)]
        public IndicatorDataSeries Result { get; set; }

        protected override void Initialize()
        {            
            _tri = Indicators.TrueRange();
        }

        public override void Calculate(int index)
        {
            if (index < Period + 1)
            {
                Result[index] = _tri.Result[index];
            }
            if (index >= Period)
            {
                Result[index] = (Result[index - 1]*(Period - 1) + _tri.Result[index])/Period;
            }
        }
    }
}

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