indicator calculation inside onbarupdate

[dodoei]

If I have sth like output=MA(customdata, 5)[0] inside OnBarupdate(), does it calculate the sma for the entire data everytime it’s called then assign the last value to output or is it smart enough to do only online update based on previous calculated values? Thanks!

[NinjaTrader_ChelseaB]

Hello dodoei,

Indicators are cached when the parameters are the same and only update the latest bar.

Add a print to OnBarUpdate() in the indicator and you can see when this is updating.

You can also assign an indicator to a class level variable in OnStateChange when State is State.DataLoaded.

private SMA mySMA;

in OnStateChange():
mySMA = SMA(6);

in OnBarUpdate():
Print(mySMA[0]);