Using an Indicator with a secondary data in a Strategy

[tradebot]

Hi all. I am using this Open Breakout Indicator as a base (https://ninjatraderecosystem.com/use...nge-indicator/) to created a modified version that is simpler and have a few public variables for upper and lower ranges. It works well as an indicator in all timeframes as expected.

The issue is that I am trying to use it from a strategy and can't make it work. I read I also need to add the same dataseries in the host, so I did but still upper and lower does not set.

private OBR2 OBRIndicator;

else if (State == State.Configure)

{
AddDataSeries(BarsPeriodType.Minute, 1);
}

else if (State == State.DataLoaded)
{
OBRIndicator = OBR2 (DateTime.Parse("09:30",...,...);

AddChartIndicator(OBRIndicator);
}


What am I missing?

Much appreciated as always.

Thanks

[NinjaTrader_Emily]

Hello tradebot,

Thank you for your post.

Does your version of the indicator have a plot? The indicator you linked to does not have a plot, so Update() would potentially need to be called. The following note from the OnBarUpdate() page of the help guide is relevant here:

• "Hosted indicators will need to be accessed by the hosting script to ensure OnBarUpdate functionality. This can be done by: 1) Calling Update on the hosted indicator within the host script, 2) Including a plot in the hosted indicator and accessing the plot in the host script, 3) Including a plot in the hosted indicator and adding the indicator to the chart with AddChartIndicator (strategies only)"
  • https://ninjatrader.com/support/help...nbarupdate.htm

If your version of the indicator does not have a plot added via AddPlot() then only the first option is relevant. The reference sample that demonstrates "Exposing indicator values that are not plots" calls Update() in the indicator to update the value of the exposed variable for when it is accessed in the strategy:

https://ninjatrader.com/support/helpGuides/nt8/exposing_indicator_values_that.htm

Please let us know if we may be of further assistance.

[tradebot]

Thank you Emily. It worked.