ninjatrader/strategies/trin/TRINBot.cs

#region Using declarations
using NinjaTrader.Cbi;
using NinjaTrader.Data;
using NinjaTrader.NinjaScript.Indicators;
using System.ComponentModel.DataAnnotations;
#endregion

namespace NinjaTrader.NinjaScript.Strategies
{
    public class TRINBot : Strategy
    {
        private RSI rsi;
        private SMA sma;
        
        protected override void OnStateChange()
        {
            if (State == State.SetDefaults)
            {
                Description = @"Taken from chapter 12 of Short Term Trading Strategies That Work";
                Name = "TRIN Bot";
                Calculate = Calculate.OnBarClose;
                EntriesPerDirection = 1;
                EntryHandling = EntryHandling.AllEntries;
                IsExitOnSessionCloseStrategy = true;
                ExitOnSessionCloseSeconds = 30;
                IsFillLimitOnTouch = false;
                MaximumBarsLookBack = MaximumBarsLookBack.TwoHundredFiftySix;
                OrderFillResolution = OrderFillResolution.Standard;
                Slippage = 0;
                StartBehavior = StartBehavior.WaitUntilFlat;
                TimeInForce = TimeInForce.Gtc;
                TraceOrders = false;
                RealtimeErrorHandling = RealtimeErrorHandling.StopCancelClose;
                StopTargetHandling = StopTargetHandling.PerEntryExecution;
                BarsRequiredToTrade = 20;
                IsInstantiatedOnEachOptimizationIteration = true;

                LongTermTrendPeriod = 200;
            }
            else if (State == State.Configure)
            {
                AddDataSeries("^TRIN", BarsPeriodType.Day, 1);
            }
            else if (State == State.DataLoaded)
            {
                rsi = RSI(2, 1);
                sma = SMA(LongTermTrendPeriod);
            }
        }

        protected override void OnBarUpdate()
        {
            if (BarsInProgress != 0)
                return;

            if (CurrentBars[1] < 2)
                return;

            if (CurrentBar < LongTermTrendPeriod)
                return;

            if (Close[0] > sma[0] && rsi[0] < 50)
            {
                if (Closes[1][0] > 1.0 && Closes[1][1] > 1.0 && Closes[1][2] > 1.0)
                    EnterLong();
            }
            else if (rsi[0] > 65)
                ExitLong();
        }

        public override string DisplayName
        {
            get { return Name; }
        }

        [NinjaScriptProperty]
        [Display(Name = "Long-Term Trend Period", GroupName = "TRIN Bot", Order = 1)]
        public int LongTermTrendPeriod { get; set; }
    }
}