Problem with SetFormula from a user defined function

the expression in SetFormula returns values to be inserted in the named wave, not a wave.

If you need to recalculate all of the new values for the wave in one, you can set up a 'dummy' dependency to achieve that.

make some other wave or variable dependent upon a function in which you reset the wave pz.

In this code, the dummy variable vDummy is explicitly dependent upon wave foo and variable var1, and the wave foo is effectively dependent upon variable var1.

I think that reentry is somehow blocked so that func1 is executed only once when var1 is changed, otherwise we might do something like:

I recommend that you try first to set up the dependency from the commandline using the := syntax to check how things work.

I would suggest to avoid dependency formulas. Nowadays you can nearly always achieve your goal without dependencies, the latter are really hard to debug.

Thanks for the quick replies!

I now used dummy variables that are dependent on a user function which update the desired waves in the course of the function. This works very well for my use-case. 
Thank you Tony for the tips, it really helped!

But I see the point of Thomas, I was also kind of lost in the debugging process with dependencies.