i am using the latest Psychopy version on windows 10. I tried to build a block design like the one in the demo. In the outer loop i have a header which then lists xlsx files beneath. In the inner loop, the demo uses
$header to then calsl the xlsx files from the outer loop.
So instead of calling the xlsx directly for the loop, i call $header which should give me random input from xlsx. 1-4. Problem is, that calling the xlsx with $header is not working. It say “header” is not defined.
Is this Block demo still up to date or did anything change?
I hope someone can help me with this.