Stop Exit combined with time based exit

Author: traindl

Creation Date: 8/19/2012 6:33 AM

Wealth Lab » WealthScript (.NET) » Stop Exit combined with time based exit

traindl

8/19/2012 6:33 AM

Hello Guys,

hope you can help me ... there must be a failure in my code.

I just wanted to exit a long position after a random entry criteria either at a stop loss level at 2% from entry or if this stop never get triggered after 3 days in market (sell at close) time based exit.

every time when i try to run the strategy following error appears "Runtime error: Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt. bei WealthLab.Strategies.MyStrategy.Execute()

and also only 2 trades were done in 15 years backtest. !?

i will attach my coding.... hope you can help me.

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Hello Guys,

hope you can help me ... there must be a failure in my code.

I just wanted to exit a long position after a random entry criteria either at a stop loss level at 2% from entry or if this stop never get triggered after 3 days in market (sell at close) time based exit.

every time when i try to run the strategy following error appears "Runtime error: Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt. bei WealthLab.Strategies.MyStrategy.Execute()

and also only 2 trades were done in 15 years backtest. !?

i will attach my coding.... hope you can help me.

[CODE]using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using WealthLab;
using WealthLab.Indicators;

namespace WealthLab.Strategies
{
	public class MyStrategy : WealthScript
	{
		private StrategyParameter RSIperiod;
		private StrategyParameter oversoldup;
		private StrategyParameter oversolddown;
		private StrategyParameter RSIperiod_1;
		private StrategyParameter overboughtup;
		private StrategyParameter overboughtdown;
		private StrategyParameter TBX;
		public MyStrategy()
		{
		
			TBX = CreateParameter("Number of Bars",3,3,6,1);
		}

protected override void Execute()
		{

for(int bar = GetTradingLoopStartBar(30); bar < Bars.Count; bar++)
			{
				if (IsLastPositionActive)
				{
					Position p = LastPosition;
					if (p.EntrySignal.Contains("Group2|"))
					{
						SellAtStop( bar, p, p.EntryPrice *0.98, "2%Stop" );
					//	SellAtLimit( bar, p, p.EntryPrice *1.04, "4%Target" );
						
						if (bar - LastActivePosition.EntryBar >= TBX.ValueInt-1)
						{
							SellAtClose(bar, p, "Group2");
						}
					}
					if (p.EntrySignal.Contains("Group1|"))
					{
						if (bar - LastActivePosition.EntryBar >= TBX.ValueInt-1)
						{
							CoverAtClose(bar, p, "Group1");
						}
					}

}
				else
				{
					
					if ( Close[bar-20] > Open[bar-20] && Close[bar-21] < Open[bar-21] )
						
					{
						SetPaneBackgroundColor(PricePane,bar, Color.Yellow);
						BuyAtMarket(bar + 1, "Group2|");
					}
					if ( Close[bar-20] < Open[bar-20] && Close[bar-21] > Open[bar-21] )
				
					{
						SetPaneBackgroundColor(PricePane,bar, Color.LightGreen);
						ShortAtMarket(bar + 1, "Group1|");
					}

}
			}
		}
	}
}
[/CODE]

Eugene

8/19/2012 6:45 AM

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[CODE]using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using WealthLab;
using WealthLab.Indicators;

namespace WealthLab.Strategies
{
	public class MyStrategy : WealthScript
	{
		private StrategyParameter RSIperiod;
		private StrategyParameter oversoldup;
		private StrategyParameter oversolddown;
		private StrategyParameter RSIperiod_1;
		private StrategyParameter overboughtup;
		private StrategyParameter overboughtdown;
		private StrategyParameter TBX;
		
		public MyStrategy()
		{		
			TBX = CreateParameter("Number of Bars",3,3,6,1);
		}

protected override void Execute()
		{
			for(int bar = GetTradingLoopStartBar(30); bar < Bars.Count; bar++)
			{
				if (IsLastPositionActive)
				{
					Position p = LastPosition;
					if (p.PositionType == PositionType.Long)
					{
						if (bar - p.EntryBar >= TBX.ValueInt-1)
							SellAtClose(bar, p, "AtClose");
						else
							SellAtStop( bar+1, p, p.EntryPrice *0.98, "2%Stop" );
						//	SellAtLimit( bar+1, p, p.EntryPrice *1.04, "4%Target" );
						
						
					}
					else
					{
						if (bar - p.EntryBar >= TBX.ValueInt-1)
							CoverAtClose(bar, p, "AtClose");
					}

}
				else
				{
					bool longEntry = ( Close[bar-20] > Open[bar-20] && Close[bar-21] < Open[bar-21] );
					bool shortEntry = ( Close[bar-20] < Open[bar-20] && Close[bar-21] > Open[bar-21] );
					
					if( longEntry )
					{
						SetPaneBackgroundColor(PricePane,bar, Color.Yellow);
						BuyAtMarket(bar + 1);
					}
					else
						if( shortEntry )
					{
						SetPaneBackgroundColor(PricePane,bar, Color.LightGreen);
						ShortAtMarket(bar + 1);
					}
				}
			}
		}
	}
}
[/CODE]

Eugene

8/19/2012 6:48 AM

P.S. A couple of notes:

#1 - The stop and limit orders were peeking into the future (corrected).
#2 - You might want to check out the WealthScript Programming Guide, Programming Trading Strategies > Peeking > Order of Trading Signals.

traindl

8/19/2012 11:38 AM

Hi Eugene,

thanks for quick info... i will check that programming guide... only one thing left...

what if i want the same also on short side ....
so both on long and short side , stop loss 2% or time based exit either what triggers before ?

thanks so much