I'm having listboxes in filmweek year, filmweek weeknbr, and would need the Yweek and the prevweek year & weeknbr into variables, so that i can use these variables in a set-analysis.
If I understand your problem correctly, you shouldn't need to get the values in variables for use in a Set Expression. You should be able to refer to them directly like
Do not know, whether it is the best way, but I would create an inputbox for a variable, enter required formulae under Settings and then hide this box somewhere. Hence you have a variable, having always an updated value (which you may also see physically and/or overwrite during the testing)
If I understand your problem correctly, you shouldn't need to get the values in variables for use in a Set Expression. You should be able to refer to them directly like
