accessing previous bar on RegressionChannel raises error

[onnb1]

hi, I have this indicator that uses the RegressionChannel indicator methods. I am trying to access the Upper channel a few bars ago like this:

RegressionChannel(50, 2).Upper[1];

I am getting the following error in the Log:

Error on calling 'OnBarUpdate' method for indicator 'EminiScalpAuto' on bar 0: You are accessing an index with a value that is invalid since its out of range. I.E. accessing a series [barsAgo] with a value of 5 when

It seams like pretty trivial code. Am I missing something?

Onn

[NinjaTrader_Bertrand]

Onn, on the very first bar there would be no way your calcs could access the previous index value [1], so you need to add precautions to the script so that would not happen. One way would be adding

if (CurrentBar < 1) return;

at your OnBarUpdate() start.