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Re: st: Recoding with values of the next spell


From   Nick Cox <njcoxstata@gmail.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: Recoding with values of the next spell
Date   Wed, 29 May 2013 22:25:08 +0100

Rich is correct. For a review see

SJ-8-4  dm0042  . . . . . . . . . . . .  Speaking Stata: Distinct observations
        (help distinct if installed)  . . . . . .  N. J. Cox and G. M. Longton
        Q4/08   SJ 8(4):557--568
        shows how to answer questions about distinct observations
        from first principles; provides a convenience command

.pdf freely available at
http://www.stata-journal.com/sjpdf.html?articlenum=dm0042

Nick
njcoxstata@gmail.com

On 29 May 2013 21:31, Richard Goldstein <richgold@ix.netcom.com> wrote:

> there are built-in commands that will give you this (e.g., -codebook-)
> and there are user-written commands also; use -findit- to find either or
> both of -unique-, -distinct-

On 5/29/13 4:18 PM, Kai Huang wrote:

>> Many thanks. How about if I want to count the total number of persons instead of spells? In this case, the total number of persons is 3 as deduced from the id.
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