Validating Lookback

The manual indicates trading won't happen until the lookback threshold has been reached. Is there a way to check the look back and return out of a function if the lookback threshold hasn't been reached?

For example

void run()
// Set look back

I'd like to validate the lookback here and return if it's not ready.
// Consider trading logic

// Enter/exit trade.

thanks.

if(is(LOOKBACK)) return;


Make sure, you put this after the last series!

Thanks for the response.

I did this:

vars _prices = series(priceClose(0));
if (is(LOOKBACK)) return;

Then I received the following error. Is this what you meant by "series"? It works otherwise.

Zorro S 2.25.3
(c) oP group Germany 2020
Registered: Zorro S Subscription


CIFEM_SumUp.dll mounted
SumUp Ver 1.1
Error 055: EUR/USD no 2020 history (History\EURUSD_2020.t6)
Test: CIFEM_SumUp EUR/USD 2012..2020
Error 041: Wrong series usage!
Bar 7999: 1 - bar 8000: 15

You need to share more of your code.
Without context I assume it is impossible to analyze what the cause is.