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st: using *one* (random) observation meeting an -if- criteria


From   Fredrik Wallenberg <fwallenberg@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: using *one* (random) observation meeting an -if- criteria
Date   Wed, 3 Aug 2005 08:34:11 -0700

As a follow up on my earlier question regarding grouping observations
I got (and built) solutions that work but that rely on sorts to put an
observation meeting my criteria in position 1.

If there was a way for me to set a scalar equal to the first
observation that meets my criteria, I suspect I could speed up the
algorithm a lot (and trust me, I need it... I'm probably about 1/4
through the dataset and my program has been running for well over 12
hrs).

Thanks,

Fredrik

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