mme 10 and 20 histogram

[Esteban890]

Hello,
Sorry for my english i am french


I would like to develop an indicator as an histogram in green and it says to buy and red when it says to sell

it is based on the mme 10 and 20, the crossover of them

is this code correct ? because i dont arrive to compile it in ninjascript editor, there are error messages
thank you



namespace NinjaTrader.NinjaScript.Indicators
{
public class MMECrossHistogram : Indicator
{
protected override void OnStateChange()
{
if (State == State.SetDefaults)
{
Description = "Histogram for EMA 10 and EMA 20 Crossings";
Name = "MMECrossHistogram";
Calculate = Calculate.OnEachTick;
IsOverlay = false;
DisplayInDataBox = true;
}
else if (State == State.DataLoaded)
{
AddPlot(new Stroke(Brushes.Transparent, 2), PlotStyle.Histogram, "Histogram");
}
}

protected override void OnBarUpdate()
{
double ema10 = EMA(Close, 10)[0];
double ema20 = EMA(Close, 20)[0];

if (CrossAbove(ema10, ema20, 1))
{
PlotBrushes[0][0] = Brushes.Green;
PlotValues[0][0] = ema10 - ema20;
}
else if (CrossBelow(ema10, ema20, 1))
{
PlotBrushes[0][0] = Brushes.Red;
PlotValues[0][0] = ema10 - ema20;
}
else
{
PlotBrushes[0][0] = Brushes.Transparent;
PlotValues[0][0] = 0;
}
}
}
}

[NinjaTrader_Jesse]

Hello Esteban890,

The PlotValues is not correct, if you are trying to set a plot that is Value[0]. You can see some examples of setting a plot here: https://ninjatrader.com/support/help...ghtsub=addplot

The EMA use is also not correct, you can see an example of calling the EMA here: https://ninjatrader.com/support/help...onential_e.htm

There is an example of using the EMA with the crossabove condition here: https://ninjatrader.com/support/help...sub=CrossAbove

[Esteban890]

Hello Esteban890,

The PlotValues is not correct, if you are trying to set a plot that is Value[0]. You can see some examples of setting a plot here: https://ninjatrader.com/support/help...ghtsub=addplot

The EMA use is also not correct, you can see an example of calling the EMA here: https://ninjatrader.com/support/help...onential_e.htm

There is an example of using the EMA with the crossabove condition here: https://ninjatrader.com/support/help...sub=CrossAbove

Hello Jesse, and thank you very much for your help . Actually, to be honest, I'm not a good developer in addition to not speaking English well I've been pulling my hair out for hours to generate good code. Despite your links, thank you for those, I still can't do it. I'd be very grateful if you could give me the code for what I'm looking for, either the generation of the histogram from the ema 10 and 20, or a buy or sell signal appearing on the chart. I'm aware that my request is a bit daring, but I'm trying because to be honest I'm starting to get desperate. Thanks in advance

[NinjaTrader_Jesse]

Hello Esteban890,

Our support cannot create or debug custom items for you but we can assist with questions you have surrounding your own learning. If you are not clear on any of the parts from the links we could go over those items in more detail. You can also look at the built in indicators for some examples of how indicators are coded and how to plot values. If you want to have items created for you you can also reach out to a third party developer, if you would like further information on that topic I can have another member of our team post information about how to contact developers.

[Esteban890]

Hello, I understand Jesse very well, there's nothing to worry about. My request was a bit daring, I admit. If everyone did the same, you wouldn't have time for anything. I'll try to fix the errors in my code thanks to your links or the help of a developer. Thank you very much and have a nice day.

[Esteban890]

Hello Jesse and everybody
Do you think the next code is correct ? thanks


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.DrawingTools;
#endregion

//This namespace holds Indicators in this folder and is required. Do not change it.
namespace NinjaTrader.NinjaScript.Indicators
{
public class Crossmme : Indicator
{
protected override void OnStateChange()
{
if (State == State.SetDefaults)
{
Description = @"Entrer la description du nouveau Indicateur ici.";
Name = "Crossmme";
Calculate = Calculate.OnBarClose;
IsOverlay = false;
DisplayInDataBox = true;
DrawOnPricePanel = true;
DrawHorizontalGridLines = true;
DrawVerticalGridLines = true;
PaintPriceMarkers = true;
ScaleJustification = NinjaTrader.Gui.Chart.ScaleJustification.Right;
//Disable this property if your indicator requires custom values that cumulate with each new market data event.
//See Help Guide for additional information.
IsSuspendedWhileInactive = true;
}
else if (State == State.Configure)
{
}
}
private double ema10Value;
private double ema20Value;
protected override void OnBarUpdate()
{
ema10Value = EMA(Close, 10)[0];
ema20Value = EMA(Close, 20)[0];
//Ajouter le logique personnalisée pour indicator ici.
if (CrossAbove(ema10Value, ema20Value, 1))
{
Draw.ArrowUp(this, "SignalAchatArrow" + CurrentBar, true, 0, Low[0] - TickSize * 5, Brushes.Green);
Draw.ArrowDown(this, "SignalVenteArrow" + CurrentBar, false, 0, High[0] + TickSize * 5, Brushes.Transparent);
}
else if (CrossBelow(ema10Value, ema20Value, 1))
{
Draw.ArrowDown(this, "SignalVenteArrow" + CurrentBar, true, 0, High[0] + TickSize * 5, Brushes.Red);
Draw.ArrowUp(this, "SignalAchatArrow" + CurrentBar, false, 0, Low[0] - TickSize * 5, Brushes.Transparent);
}
else
{
Draw.ArrowUp(this, "SignalAchatArrow" + CurrentBar, false, 0, Low[0] - TickSize * 5, Brushes.Transparent);
Draw.ArrowDown(this, "SignalVenteArrow" + CurrentBar, false, 0, High[0] + TickSize * 5, Brushes.Transparent);
}
}
}
}
}

region NinjaScript generated code. Neither change nor remove.

namespace NinjaTrader.NinjaScript.Indicators
{
public partial class Indicator : NinjaTrader.Gui.NinjaScript.IndicatorRenderBase
{
private Crossmme[] cacheCrossmme;
public Crossmme Crossmme()
{
return Crossmme(Input);
}

public Crossmme Crossmme(ISeries<double> input)
{
if (cacheCrossmme != null)
for (int idx = 0; idx < cacheCrossmme.Length; idx++)
if (cacheCrossmme[idx] != null && cacheCrossmme[idx].EqualsInput(input))
return cacheCrossmme[idx];
return CacheIndicator<Crossmme>(new Crossmme(), input, ref cacheCrossmme);
}
}
}

namespace NinjaTrader.NinjaScript.MarketAnalyzerColumns
{
public partial class MarketAnalyzerColumn : MarketAnalyzerColumnBase
{
public Indicators.Crossmme Crossmme()
{
return indicator.Crossmme(Input);
}

public Indicators.Crossmme Crossmme(ISeries<double> input )
{
return indicator.Crossmme(input);
}
}
}

namespace NinjaTrader.NinjaScript.Strategies
{
public partial class Strategy : NinjaTrader.Gui.NinjaScript.StrategyRenderBase
{
public Indicators.Crossmme Crossmme()
{
return indicator.Crossmme(Input);
}

public Indicators.Crossmme Crossmme(ISeries<double> input )
{
return indicator.Crossmme(input);
}
}
}

#endregion

[NinjaTrader_Jesse]

Hello Esteban890,

Does it work when you run it? As mentioned our support cannot provide debugging services, testing the scripts you may would be part of the development process that you would go through. If you are getting a compile error or having a problem with that code I would suggest to include the error you are seeing or point out which line of code you needed help with.

[Esteban890]

Hello Jesse, I understand, there is no problem. Thank you for your reply have a nice day