Converting Minute Data to 30 min frequency for indicator

[mwait]

Hi, I'm subscribed to minute data which I use for my algo.

However for one of the indicators, (the MACD) I'd like it so use data in 30 minute frequencies, not minutely.

How would I do this?

[NinjaTrader_PatrickH]

Hello mwait,

Thank you for your note.

You do not need to convert data. Each bar type and value is built automatically from one of the base data types such as Tick, Minute, and Day.

In code if you need to use a specific bar type and value you would first need to add it in the Initialize() method. For example:

Add(PeriodType.Minute, 30);

Then you call the bars array in your indicator. For example:

MACD(BarsArray[1], 12, 26, 9)[0]

For information on multiple bar series in your code please visit the following link: http://ninjatrader.com/support/helpG...nstruments.htm

Please let me know if you have any questions.

[borland]

Easy enough, but seems overly complicated for several timeframes, in that you'd need to keep track of all your BarsArray[] indexes and which is which timeframe.

Is there a way to use C# pointers so as to eliminate keeping track of which BarsArray index is needed? Can you assign a array variable name to the Add() function?

[NinjaTrader_PatrickH]

Hello borland,

Thank you for your response.

You would need to refer to the different bars arrays by their index (0, 1, 2, etc.). there would not be a means around this in NinjaScript, and I am not aware of any work around in C# that would suffice for what you mention.