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Need help fixing this error


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Need help fixing this error

  #1 (permalink)
 duckensm 
New York New york
Elite Member
 
Experience: Intermediate
Platform: NinjaTrader
Trading: Futures
Posts: 39 since Jul 2022
Thanks Given: 7
Thanks Received: 5

the error is " NinjaTrader.NinjaScript.Strayegies.MyEmaCrossgpt.Initialize():no suitable method found to override" the error is on line 39 on the code

#region Using declarations
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Input;
using System.Windows.Media;
using System.Xml.Serialization;
using NinjaTrader.Cbi;
using NinjaTrader.Gui;
using NinjaTrader.Gui.Chart;
using NinjaTrader.Gui.SuperDom;
using NinjaTrader.Gui.Tools;
using NinjaTrader.Data;
using NinjaTrader.NinjaScript;
using NinjaTrader.Core.FloatingPoint;
using NinjaTrader.NinjaScript.Indicators;
using NinjaTrader.NinjaScript.DrawingTools;
#endregion


namespace NinjaTrader.NinjaScript.Strategies
{
public class MyEmaCrossgpt : Strategy
{
private EMA ema9;
private EMA ema21;
private ATR atr;
private int atrPeriod = 14;
private double atrMultiplier = 2.0;
private double target1 = 2.0;
private double target2 = 4.0;
private double stop = 1.0;

protected override void Initialize()
{
ema9 = EMA(9);
ema21 = EMA(21);
atr = ATR(atrPeriod);
CalculateOnBarClose = true;
}

protected override void OnBarUpdate()
{
if (CurrentBar < Math.Max(atrPeriod, Math.Max(ema9.Period, ema21.Period)))
return;

if (CrossAbove(ema9, ema21, 1)
&& atr[0] > atrMultiplier * atr[1])
{
EnterLong(1, "Long");
SetProfitTarget(CalculationMode.Ticks, target1);
SetProfitTarget(CalculationMode.Ticks, target2);
SetStopLoss(CalculationMode.Ticks, stop, false);
SetTrailStop(CalculationMode.Ticks, atrMultiplier * ATR(atrPeriod)[0]);
}
else if (CrossBelow(ema9, ema21, 1)
&& atr[0] > atrMultiplier * atr[1])
{
EnterShort(1, "Short");
SetProfitTarget(CalculationMode.Ticks, target1);
SetProfitTarget(CalculationMode.Ticks, target2);
SetStopLoss(CalculationMode.Ticks, stop, false);
SetTrailStop(CalculationMode.Ticks, atrMultiplier * ATR(atrPeriod)[0]);
}
}
}
}

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  #2 (permalink)
 
sam028's Avatar
 sam028 
Site Moderator
 
Posts: 3,765 since Jun 2009
Thanks Given: 3,825
Thanks Received: 4,629

@duckensm, it looks like you're using NinjaTrader 7 code in NinjaTrader 8.
To initialize your indicators it's more like this:

protected override void OnStateChange() {
if (State == State.SetDefaults) {
// stuff
Calculate = Calculate.OnBarClose;
}
else if (State == State.DataLoaded) {
ema9 = EMA(9);
ema21 = EMA(21);
atr = ATR(atrPeriod);
}
}

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  #3 (permalink)
 duckensm 
New York New york
Elite Member
 
Experience: Intermediate
Platform: NinjaTrader
Trading: Futures
Posts: 39 since Jul 2022
Thanks Given: 7
Thanks Received: 5


Thank you for your help, but now I error No Overload for Method SetStopLoss takes 3 arguments, the is on line 62 and 71

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  #4 (permalink)
 BERN Algos 
Bologna Italy
Elite Member
 
Experience: Advanced
Platform: nt8
Broker: NinjaTrader
Trading: futures
Posts: 42 since Jun 2022
Thanks Given: 11
Thanks Received: 38


duckensm View Post
Thank you for your help, but now I error No Overload for Method SetStopLoss takes 3 arguments, the is on line 62 and 71



 
Code 
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Input;
using System.Windows.Media;
using System.Xml.Serialization;
using NinjaTrader.Cbi;
using NinjaTrader.Gui;
using NinjaTrader.Gui.Chart;
using NinjaTrader.Gui.SuperDom;
using NinjaTrader.Gui.Tools;
using NinjaTrader.Data;
using NinjaTrader.NinjaScript;
using NinjaTrader.Core.FloatingPoint;
using NinjaTrader.NinjaScript.Indicators;
using NinjaTrader.NinjaScript.DrawingTools;
#endregion


namespace NinjaTrader.NinjaScript.Strategies
{
public class MyEmaCrossgpt : Strategy
{
	private EMA ema9;
	private EMA ema21;
	private ATR atr;
	private int atrPeriod = 14;
	private double atrMultiplier = 2.0;
	private double target1 = 2.0;
	private double target2 = 4.0;
	private double stop = 1.0;

	protected override void OnStateChange()
	{
		if (State == State.DataLoaded)
		{	
			ema9 = EMA(9);
			ema21 = EMA(21);
			atr = ATR(atrPeriod);
			Calculate									= Calculate.OnBarClose;
		}
	}

		protected override void OnBarUpdate()
		{
			if (CurrentBar < Math.Max(atrPeriod, Math.Max(ema9.Period, ema21.Period)))
			return;

			if (CrossAbove(ema9, ema21, 1)
			&& atr[0] > atrMultiplier * atr[1])
			{
				EnterLong(1, "Long");
				SetProfitTarget(CalculationMode.Ticks, target1);
				SetProfitTarget(CalculationMode.Ticks, target2);
				SetStopLoss(CalculationMode.Ticks, stop);
				SetTrailStop(CalculationMode.Ticks, atrMultiplier * ATR(atrPeriod)[0]);
			}
			else if (CrossBelow(ema9, ema21, 1)
			&& atr[0] > atrMultiplier * atr[1])
			{
				EnterShort(1, "Short");
				SetProfitTarget(CalculationMode.Ticks, target1);
				SetProfitTarget(CalculationMode.Ticks, target2);
				SetStopLoss(CalculationMode.Ticks, stop);
				SetTrailStop(CalculationMode.Ticks, atrMultiplier * ATR(atrPeriod)[0]);
			}
		}
	}
}

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  #5 (permalink)
 duckensm 
New York New york
Elite Member
 
Experience: Intermediate
Platform: NinjaTrader
Trading: Futures
Posts: 39 since Jul 2022
Thanks Given: 7
Thanks Received: 5

I was able to fix the code with chatgpt, but I don't know how to add variable so I can access setting for EMA, ATR, Targets and trailing Stop


BERN Algos View Post
 
Code 
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Input;
using System.Windows.Media;
using System.Xml.Serialization;
using NinjaTrader.Cbi;
using NinjaTrader.Gui;
using NinjaTrader.Gui.Chart;
using NinjaTrader.Gui.SuperDom;
using NinjaTrader.Gui.Tools;
using NinjaTrader.Data;
using NinjaTrader.NinjaScript;
using NinjaTrader.Core.FloatingPoint;
using NinjaTrader.NinjaScript.Indicators;
using NinjaTrader.NinjaScript.DrawingTools;
#endregion


namespace NinjaTrader.NinjaScript.Strategies
{
public class MyEmaCrossgpt : Strategy
{
	private EMA ema9;
	private EMA ema21;
	private ATR atr;
	private int atrPeriod = 14;
	private double atrMultiplier = 2.0;
	private double target1 = 2.0;
	private double target2 = 4.0;
	private double stop = 1.0;

	protected override void OnStateChange()
	{
		if (State == State.DataLoaded)
		{	
			ema9 = EMA(9);
			ema21 = EMA(21);
			atr = ATR(atrPeriod);
			Calculate									= Calculate.OnBarClose;
		}
	}

		protected override void OnBarUpdate()
		{
			if (CurrentBar < Math.Max(atrPeriod, Math.Max(ema9.Period, ema21.Period)))
			return;

			if (CrossAbove(ema9, ema21, 1)
			&& atr[0] > atrMultiplier * atr[1])
			{
				EnterLong(1, "Long");
				SetProfitTarget(CalculationMode.Ticks, target1);
				SetProfitTarget(CalculationMode.Ticks, target2);
				SetStopLoss(CalculationMode.Ticks, stop);
				SetTrailStop(CalculationMode.Ticks, atrMultiplier * ATR(atrPeriod)[0]);
			}
			else if (CrossBelow(ema9, ema21, 1)
			&& atr[0] > atrMultiplier * atr[1])
			{
				EnterShort(1, "Short");
				SetProfitTarget(CalculationMode.Ticks, target1);
				SetProfitTarget(CalculationMode.Ticks, target2);
				SetStopLoss(CalculationMode.Ticks, stop);
				SetTrailStop(CalculationMode.Ticks, atrMultiplier * ATR(atrPeriod)[0]);
			}
		}
	}
}


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  #6 (permalink)
 BERN Algos 
Bologna Italy
Elite Member
 
Experience: Advanced
Platform: nt8
Broker: NinjaTrader
Trading: futures
Posts: 42 since Jun 2022
Thanks Given: 11
Thanks Received: 38


duckensm View Post
I was able to fix the code with chatgpt, but I don't know how to add variable so I can access setting for EMA, ATR, Targets and trailing Stop

Now is your turn. There are tons of examples on line. You may also play with Strategy Builder and study generated code.

 
Code 
#region Using declarations
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Input;
using System.Windows.Media;
using System.Xml.Serialization;
using NinjaTrader.Cbi;
using NinjaTrader.Gui;
using NinjaTrader.Gui.Chart;
using NinjaTrader.Gui.SuperDom;
using NinjaTrader.Gui.Tools;
using NinjaTrader.Data;
using NinjaTrader.NinjaScript;
using NinjaTrader.Core.FloatingPoint;
using NinjaTrader.NinjaScript.Indicators;
using NinjaTrader.NinjaScript.DrawingTools;
#endregion


namespace NinjaTrader.NinjaScript.Strategies
{
	public class MyEmaCrossgpt : Strategy
	{
		private EMA ema9;
		private EMA ema21;
		private ATR atr;
		private int atrPeriod = 14;
		private double atrMultiplier = 2.0;
		private double target1 = 2.0;
		private double target2 = 4.0;
		private double stop = 1.0;

		protected override void OnStateChange()
		{
			if (State == State.SetDefaults)
			{
				Period1					= 9;
				Period2					= 21;
			}
			if (State == State.DataLoaded)
			{	
				ema9 = EMA(Period1);
				ema21 = EMA(Period2);
				atr = ATR(atrPeriod);
				Calculate	= Calculate.OnBarClose;
			}
		}

		protected override void OnBarUpdate()
		{
			if (CurrentBar < Math.Max(atrPeriod, Math.Max(ema9.Period, ema21.Period)))
			return;

			if (CrossAbove(ema9, ema21, 1)
			&& (atr[0] > atrMultiplier * atr[1]))
			{
				EnterLong(1, "Long");
				SetProfitTarget(CalculationMode.Ticks, target1);
				SetProfitTarget(CalculationMode.Ticks, target2);
				SetStopLoss(CalculationMode.Ticks, stop);
				SetTrailStop(CalculationMode.Ticks, atrMultiplier * ATR(atrPeriod)[0]);
			}
			else if (CrossBelow(ema9, ema21, 1)
			&& (atr[0] > atrMultiplier * atr[1]))
			{
				EnterShort(1, "Short");
				SetProfitTarget(CalculationMode.Ticks, target1);
				SetProfitTarget(CalculationMode.Ticks, target2);
				SetStopLoss(CalculationMode.Ticks, stop);
				SetTrailStop(CalculationMode.Ticks, atrMultiplier * ATR(atrPeriod)[0]);
			}
		}
			
		#region Properties
		
		[NinjaScriptProperty]
		[Range(1, 50)]
		[Display(Name="Period1", Order=1, GroupName="Parameters")]
		public int Period1
		{ get; set; }
		
		[NinjaScriptProperty]
		[Range(1, 50)]
		[Display(Name="Period2", Order=2, GroupName="Parameters")]
		public int Period2
		{ get; set; }
			
		#endregion
		
		
	}
}

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Last Updated on January 16, 2023


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