Obtaining current value of by-group variable

[Mike Lacy]

Within a by-able program, I'd like to use the current value of the by-group variable, assuming the simplest situation of a byable program with just one by-variable. I would have thought this would be stored in some macro, but I didn't find that in the documentation. Is there something less clumsy than this?

program test, byable
marksample touse
levelsof `_byvars' if `touse', local(byval)
... now do whatever with `byval'
end

[daniel klein]

Discussed here