What is the BarsArray?

[timmbbo]

Hi there, I'm writing a strategy with Multi time frame orders. I'm referring to your sample code, SampleMultiTimeFrameOrders, which contains this bit of code:

Add(PeriodType.Minute, 5);
Add(PeriodType.Minute, 15);
...
if (SMA(5)[0] < SMA(5)[1] && SMA(5)[0] < SMA(BarsArray[2], 10)[0])
...

I don't understand why BarsArray does? For instance, what is the difference between:

SMA(BarsArray[2], 10)

and

SMA(10)[2]

Thanks,

[NinjaTrader_PaulH]

Hello timmbbo,

Thanks for your post.

In the conditional statement if (SMA(5)[0] < SMA(5)[1] && SMA(5)[0] < SMA(BarsArray[2], 10)[0])

BarsArray[2] would be pointing to the value of a 10 period SMA based on the 15 minute added dataseries.

Without the BarsArray reference, the code would refer whichever barsarray called the OnBarUpdate.

For a multi-time frame or multi series ninjascript, please make sure you review the help guide section here as this will help clarify barsarray references and other critical considerations: http://ninjatrader.com/support/helpG...nstruments.htm

edit: added clarifying statement, "Without the BarsArray ..."