How to have multiple instances of an indicator?

[wayneFH]

It seems that the indicator methods in a strategy instantiate a "singleton" or static reference to the indicator object. That means only one instance of it exists.

However, I have an indicator called Current10MinsOHL() to calculated the same for only 10 minutes. But I now need it to be variable on 20 minutes and 5 minutes as well as 10 minutes.

So rather than hard code the time span, it needs a property, Minutes, to set how many minutes to track the current OHL.

Currently in the initialize method, I call the Add() method like the examples:

Add(Current10MinsOHL());

However, if I make this indicator property driven, can the Add function work this way instead?

CurrentOHL slowOHL = new CurrentOHL();
slowOHL.Minutes = slowMinutes; // from a property
Add( slowOHL );

CurrentOHL medOHL = new CurrentOHL(10);
medOHL.Minutes = medMinutes; // from a property
Add( medOHL );

CurrentOHL fastOHL = new CurrentOHL(10);
fastOHL.Minutes = fastMinutes; // from a property
Add( fastOHL );

Or will it get confused expecting a single instance of CurrentOHL();

Sincerely,
Wayne

[NinjaTrader_Dierk]

>> Add(Current10MinsOHL());
Anything else than that is not supported. Meaning you should not try to create multiple instances.

Note: Basically you only can multiple instances if the params of an indicator differ. Does not work here, since this indicator has no params.

[wayneFH]

Oh, thanks. This helps. I saw some of the auto-generated code doing something related to multiple params. That helps me understand. I'll experiment.

Thanks,
Wayne

[dhunnewell]

Muliple instances

Only way I hav found to do this is to use identical inicators with differing names