Get Bar By Index

[Herrwolf1]

Is it possible to obtain a bar object by index from the "Bars" array? I'm wanting to compare a bar classified as a "CandlestickPattern" to a value. I've made a function to so, but I'm having a hard time obtaining the correct bar object. I could pass in the OCHL values but that seems ignorant when the Bar object contains all those values.

Thanks,

[NinjaTrader_Jesse]

Hello Herrwolf1,

Welcome to the NinjaTrader support forum.

Yes this is certainly possible to retrieve values from a specific index.

In NinjaScript you have two methods of retrieving information about a bar depending on the scope of where you are accessing that data. From OnBarUpdate you generally use the BarsAgo system to retrieve data from a number of Bars from now or the processing bar. When outside the OnBarUpdate context you instead deal with direct bar indexes so both systems are supported in NinjaScript.

When using a price series, indicator, or any Series<T> you will have the GetValueAt method which allows to get a value from a specific index:

https://ninjatrader.com/support/helpGuides/nt8/en-us/getvalueat.htm?zoom_highlightsub=GetValueAt

for example:

Close.GetValueAt(123);

This would return the Close price for that index. Rather than gathering a bar, you would use the series to retrieve the value.

If you are getting a BarsAgo returned from something you are doing, you can also convert that to an index by subtracting the BarsAgo from the CurrentBar:

CurrentBar - BarsAgo = index of bar

I look forward to being of further assistance.