Communicating between two strategies

[ct]

I have two strategies which run on 2 different time frames is there a way the two can share a variable? I used a global value and that works if they are on the same chart but they can't see each other when on different charts.

I know it wasn't supported in Ninja but didn't know if some of the new enhancements supported now enabled this function in some way.

Cheers

ct

[mrlogik]

CT!

Strangely enough, I was referencing your post last night about global variables.

As long as you have a public static type vName you should be able to reference it from anywhere using NT.

What are you doing differently from this?

[ct]

Here is what I am using:

public static string MessengerInterStrategicVar = "" ;

[mrlogik]

This is what I do.

In C#, or any Object Oriented Programming you should create a class with a default constructor, private variables, and get / set methods.

I made a dummy indicator, pulled out all of the methods (initialize(), onbarupdate(), etc) that won't be used.

Here is an example of a variable Class with this.

namespace NinjaTrader.Indicator
{
    public class GlobalChart
    {
        private int tValue1;

        public GlobalChart()
        {
            this.tValue1 = 0;
        }

        public int TValue1 { 
                                  get { return this.tValue1; } 
                                  set { this.tValue1 = value; } 
                                 }
    }

    partial class Indicator
    {
        public static GlobalChart gEURUSD_1 = new GlobalChart();
    }
}

You can set the value as such.

gEURUSD_1.tValue = 55;

You can get the value as such.

int val = (int)gEURUSD_1.tValue;

Make sure you have some logic that sets a "Sender" and a "Receiver" variable.

Let me know.

mrLogik

[ct]

Thanks. I am not a c# expert bill will work though it.

[Roman]

Passing data between indicators and strategy

Hi,

I hope you will be able to help...

Say, I wanted to write an indicator that would be able to communicate with a strategy (or strategies) and share some data, even if it was one way, say strategy would be nice enough to update indicator...

Is there a way that this could be done without going to .dll?

Your help will be most appreciated...

Roman

[NinjaTrader_JoshP]

Roman,

A strategy can call any indicator. If you expose the indicator values you are trying to access you will have no problem doing this directly within NinjaScript.

http://www.ninjatrader-support2.com/vb/showthread.php?t=4991

Cross strategy is a different story and that is currently outside the scope of what we can support.

[Roman]

Thanks Josh,

A valuable hint about the Update(). I will try to work something out...

I understand that I can read any indicators, what I had in mind however is a cross strategy... I'll try to come up with another idea, I suppose...

Cheers,

Roman

[mgbloomfield]

Cross Strategy Idea

What if... Strategy "A" wrote the variable to a text file, then Strategy "B" read the variable from the text file?

Or, read/write the variable to a database (mySQL, SQL Server, Access, etc.)

[NinjaTrader_Ben]

Hello,

This may work, but we do not provide support for it.

These links may help if you don't have them already:

http://www.ninjatrader-support2.com/vb/showthread.php?t=3476

http://www.ninjatrader-support2.com/vb/showthread.php?t=3475