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Re: st: EGEN GROUP where order doesn't matter?
From
Don Ruby <goofnmick@gmail.com>
To
statalist@hsphsun2.harvard.edu
Subject
Re: st: EGEN GROUP where order doesn't matter?
Date
Fri, 11 Feb 2011 15:58:21 -0500
Note, I have 4-tuple identifiers, not just a pair.
On Fri, Feb 11, 2011 at 3:11 PM, Don Ruby <goofnmick@gmail.com> wrote:
> Hi all,
>
> I understand that egen id=group(id1 id2) will create a list such that
> the pair (id1.1 id2.1)=1, (id1.2 id2.2)=2 etc. But, the order of the
> pair (id1 id2) matters so that the pair (id1.1 id2.1) will not yield
> the same value as (id2.1 id1.1).
>
> How can i make it so that the same value is generated, regardless of
> the varlist order?
>
> Thanks,
>
> Brandon
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