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]);
}
}
}
}

@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);
}
}

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

duckensm 

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]); } } } }

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 

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]); } } } }

duckensm 

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 } }