Hi, how do you guys use local $0 variable names in [expr] object?

The names with "$0-" prefix doesn't work in [expr] since it interprets "-" symbol as minus.

I tried changing "-" to "_" but it didn't work either.

Is there any clever way to use local $0 variable names in [expr] object?
Thanks in advance!

@cuinjune If you don't use "minus" in the name and if you don't start the variable name with $0 then it will work.
works.zip

David.

Hey Thanks for the reply.

Can you try this and see if it works?
Open ok.pd then change [expr v$0_v1] to [expr $f1*v$0_v1] and then save the file and then reopen the patch.
In my computer it doesn't work. I use Pd-0.48-0 in Mac OS X 10.11.6.

@cuinjune You need a space each side of the "multiply".......
It looks like you are trying to convince yourself that it will not work....
David

Thanks it worked.
I didn't know as all other expressions work just fine without having the spaces.

@cuinjune I cannot claim that I am never confused building an [expr].
You forced me to go looking for "Pd expr best practice"....... and I found this which could be useful........
http://yadegari.org/expr/expr.html
although there is no mention of why spaces are sometimes necessary. I have come a cropper before.... that's the only reason I knew.
David.