hallo,

i try to build something like a switch between two data resources.
in my example the one is a line object counting down until 0 and the other one is a random number wich changes every 100 miliseconds.
i have a third module wich should switch between this to resources randomly.
i use expr for this and it works great but i have the problem that sometimes the result is 0 but i want it to be the last insert integer value.

maybe the easiest would be when you look inside the atached patch then you will see what i mean.

http://www.pdpatchrepo.info/hurleur/randomfade.pd

it is working like you want it to, but because you have a line object that continuously counts to 0. that output * 0 will just send through a constant stream of zeros. overriding any of your other 'modules'. you need to filter this out.

There is a simple way of doing this. (Hint: you don't need any more if statements)