How to place a multi-time frame indicator on a chart ?

[wolfcuring]

How could place a 4 hours MACD on a 30 minutes chart ?

on the Initialize() method, BarsArray() is forbidden. So, I can not write the code like:

protected override void Initialize()
        {
			Add(PeriodType.Minute, 5); 
			Add(PeriodType.Minute, 30);
			Add(PeriodType.Minute, 240);
			Add(MACD(BarsArray[2],9,26,3) );
			
			
            CalculateOnBarClose = true;
        }

Then, how could I place the 240 minutes MACD on the 30 mins chart in the strategy ?

And by the way, which one is BarArray[0], if I start the strategy on a 5 mins chart and a 20 mins chart ?

Thanks !

[NinjaTrader_JessicaP]

Hello wolfcuring, and thank you for your question.

DataSeries members of BarsArray created using the Add method are read only. You can, if you would like, simply use the MACD series directly in OnBarUpdate as follows,

MACD(BarsArray[2], 9, 26, 3)

BarsArray[0] is always the primary data series. I am providing a link to the Help Guide documentation for BarsArray.

http://ninjatrader.com/support/helpGuides/nt7/barsarray.htm

Please let us know if there are any other ways we can help.

[wolfcuring]

Thank you JessicaP,

I have figured out another way to do it. That is, to create a multi-time frame MACD indicator first, that way, I don't have to refer to the BarsArray method in the Initialize() part.

Thank you anyway, hopes this could also help the others who wanna do this too.