compiling but empty plot

[Paracelsus462]

Trying to plot the difference between an EMA value for the current bar, compared to the previous bar. It will compile without error, but the indicator just shows a blank graph.

Roc[0] = EMA(12)[0] - EMA(12)[1];

[koganam]

What is the error in your log?
You need to escape the first bar.

if (CurrentBar < 1) return;

at the top of OnBarUpdate() should handle this particular instance.

[Paracelsus462]

That fixed it thank you! If there's a log showing an error I'm not sure where that is yet

[koganam]

That fixed it thank you! If there's a log showing an error I'm not sure where that is yet

The Output Window

[NinjaTrader_PaulH]

Hello Paracelsus462,

Thanks for your posts and thanks to member Koganam.

Anytime that you experience unexpected operations, please check the "Log" tab of the control center for any related error messages.