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Hi,
I’d like to add two strings together in order to define the sample.

The following codes work well :
%s = "@all if dep_invest>0"
%s2 = "and rrf>0"
%s3 = @wunion(%s,%s2)
smpl %s3

But when I add a third variable (‘autofi’ here),
%s = "@all if dep_invest>0"
%s2 = "and rrf>0 and autofi>0"
%s3 = @wunion(%s,%s2)
smpl %s3
I get an error message like « error in sample: syntax error in "smpl @all if dep_invest>0 and rrf>0 autofi>0»

note that a simple :
%s = "@all if dep_invest>0 and rrf>0 and autofi>0"
smpl %s
works.

Any clue ?
Thanks in advance! :)

Don't use @wunion. Just add the strings together with the + symbol

It works. Thanks a lot !
Cheers
J