Calling on an indicator value (external symbol)

[akvevo]

Hi,

How do I call an idicator value from another symbol?
Lets' say I am building an indicator and applying it to chart of Wheat.
Lets say that the indicator is X+Y... and Y is the moving average of CL (crude oil).

I have already added the data series:

else if (State == State.Configure)
			{
				AddDataSeries("CL 08-17", Data.BarsPeriodType.Day, 1, Data.MarketDataType.Last);
			}

But in the OnBarUpdate section, how to call a CL indicator value ?

Thanks
AK

[NinjaTrader_PaulH]

Hello akvevo,

Thanks for your post.

When you add another data series (from another instrument) the added data series is referenced by its BarsArray[] index. the chart bars are BarsArray[0], the first added data series is BarsArray[1]. You can also reference by using the plurals of price such as Closes[][] or Lows[][] when the first index is the bars array and the 2nd index would be the bar of interest of the bar's array. For example Closes[0][0] refers to the charts bars currentbar. From your example, Lows[1][0] would be the CLs current bar low.

If, for example, you wanted to use a 20 period SMA from CL, it could be coded as:
SMA(Closes[1], 20)[0] where Closes[1] points to the close price type of the CL and [0] would be the current bar SMA of the 20 period CL data.

There are a number of important concepts to review and they are well structured in the helpguide in this section: http://ninjatrader.com/support/helpG...nstruments.htm We highly recommend reading the entire section in order as this will build upon examples that should clarify how you need to code a multi time frame or multi series ninjascript strategy or indicator.