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Re: st: RE: confirm
Thanks prof. Cox.
unab is what I was looking for.
This problem is a variation on
two previously discussed on this list.
1. You want to -drop- variables if and only
if the names specified are full variable names.
Canned solution: -safedrop- on SSC
2. You want to separate a set of names
into variable names and others. (Compare a very
Canned solution: -isvar- on SSC
In each case, a useful trick is throw
something at -unab-.
If it returns an error, that something is
ambiguous or not a variable name.
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