access data from another indicator?

[tinkerz]

I want to run 4 versions of an indicator from 1 script.

Each version will have a different setting, and the script will make changes to it,

How do I set the script upto to send the input numbers to indicator in the script.

And more importantly how do I bring back more than 1 number that I want?

Tinkerz

[NinjaTrader_Austin]

tinkerz, by "script" do you mean strategy?

[tinkerz]

Both strategy and indicator

[NinjaTrader_Austin]

Thank you for the clarification. You can assign indicators to variables to help you keep track of what indicator uses what settings. Here is an example with an ATR indicator:

// in variables section
ATR myATRFive;

Initialize()
{
myATRFive = ATR(5);
}

OnBarUpdate()
{
   if (myATRFive[0] > 1000000)
    /// strong trend
}

[tinkerz]

So is there a way of taking more than one output from the indicator?

And the output for ATR(5), is what is assigned to plot 1?

[Lost Trader]

If you look at the code generated by the wizard when you have multiple plots in one indicator, then you will see how NT exposes internal variables for external reference.
You can do the same thing with any internal variable. It looks just like the input code (in the region called Properties) except there is no set statement. Don't forget the [] code every time - just consider it required before every public code statement.
[Browsable(false)]
[XmlIgnore()]

then you can reference the external variable with code like:
MyIndicator(inputVar, inputVar).OutputVar

Take a look at other code samples and you will get the idea.

[tinkerz]

Thanks I will take a look.

Even with that code it looks like it will setup 1 indicator per variable.

So how would you then initialize one indicator to return multiple outs?

Too run less overhead, would you be setting up namespaces?

Or can you assign the indicator to class or something?

Because I will probably have 1 version of the indicator with different input settings but wanting to collect for that 1 data reference from it.

So therefore I want to minimize the CPU overhead, and make sure the same indicator with different settings is not interfering with each other

[Lost Trader]

Think about what you want. If you want multiple plots on the chart, just add multiple plot statements. One indicator can easily have several outputs to a chart, several input variables, and likewise several output variables. Just name them differently. Out1, Out2, etc.

[tinkerz]

Ok, I did not explain myself properly

data1=MyIndicator(inputVar, inputVar).OutputVar

I assume you initialize the variable in the initialize section.

Wont that mean if I do this

data1=MyIndicator(256, 256).OutputVar
data2=MyIndicator(256, 256).OutputVar2

That I am running 2 versions of the same indicator.

Where I only need to do one?

If I can set my output to an array type, then I only need to initialize one indicator saving cpu time and memory?

[Lost Trader]

Ah, you are asking about Ninjatrader intelligence in optimization of code...
Can't help you there, sorry.

[NinjaTrader_Austin]

tinkerz, I will have someone get back to you tomorrow.

[NinjaTrader_Bertrand]

tinkerz, indicator instances would be cached by NT internally if you call the indicator with the same parameters as in your example case.