Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: st: Simple but baffling - problems merging files
From
Maarten buis <[email protected]>
To
[email protected]
Subject
Re: st: Simple but baffling - problems merging files
Date
Mon, 13 Dec 2010 11:36:03 +0000 (GMT)
--- On Mon, 13/12/10, Tania Wood wrote:
> I'm trying to merge two STATA datasets by matching on the
> respondent's individual pid: the datasets are wave 1 and
> wave 2 of a longitudinal study. My problem is that I
> can't get all the case pids in wave 2 to match their wave
> 1 pid.
Sounds like a precision problem, see for example:
<http://www.ats.ucla.edu/stat/Stata/faq/longid.htm>
Hope this helps,
Maarten
--------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany
http://www.maartenbuis.nl
--------------------------
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/