How to find out what instrument triggers the OnBarUpdate event

[Vincere]

Hi,

I'm adding 2 data series with the AddDataSeries method. The first one has hour bars. The second one has minutes bars.

I understand the OnBarUpdate event is triggered on each bar completion of each data series (Please tell me if I'm wrong). I calculate that this event is triggered 121 times in my case since the instrument that I select in the UI has minute bars.

I am wondering how to test if the OnBarUpdate event is triggered by the UI selected instrument (and not by the additional time series)

Thanks

[IanC28]

You can use Instrument.MasterInstrument.Name to identify the instrument. Add it to an if statement, or print statement

Print("Instrument: " + Instrument.MasterInstrument.Name);

You can also use BarsPeriodType and BarsPeriod.Value to identify the period and period type. Use the Help on these for further info.

Ian

[NinjaTrader_ChelseaB]

Hello Vincere,

OnBarUpdate will trigger for each bar for all series added to the script. The BarsInProgress value will be the index of the bar series that is currently being processed in OnBarUpdate.

https://ninjatrader.com/support/helpGuides/nt8/en-us/barsinprogress.htm

https://ninjatrader.com/support/helpGuides/nt8/en-us/onbarupdate.htm

Ian is correct in that you can print the Instrument (I would suggest Instrument.FullName).


The primary series (BarsInProgress 0) will always be the data series on the chart, or selected in the Data Series properties when adding a script to the Strategies tab of the Control Center or when backtesting.
OnBarUpdate doesn't begin processing until all series have data.

[Vincere]

Thanks for the quick response.