Is it only me or does the ac indicator only return the negative values in the array at [1] but only zeros in [0]?
I called it in the 'shift' variant and regardless of the period I don't get any positive values. When attaching it to a chart, though, it works perfectly fine, just not when called from a strategy.

Thanks for looking into this!
Let me know if you need more detail or can't reproduce.

Florian

okay, I don't know if you already fixed something but with the new release I do get the positive values... thx!