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st: RE: Check that recode work


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: Check that recode work
Date   Tue, 10 Mar 2009 14:27:28 -0000

In addition to other suggestions, check out -groups- from SSC. 

There is a write-up at 

SJ-3-4  pr0011  . . . . . . . .  Speaking Stata: Problems with tables,
Part II
        . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  N.
J. Cox
        Q4/03   SJ 3(4):420--439                                 (no
commands)
        reviews three user-written commands (tabcount, makematrix,
        and groups) as different approaches to tabulation problems

which is accessible to all via 

<http://www.stata-journal.com/sjpdf.html?articlenum=pr0011>

Nick 
n.j.cox@durham.ac.uk 

Tomas Lind

I would like to see the value of Z for combinations of A and B  (or for
combinations of A, B and C). Missing should be regarded as a category.

I have a large dataset and I generate a new variable Z that depends on
the
values of two other category variables A and B. Is there some easy way
to
let Stata show me which combinations of A, B and Z that i have after
recoding so that I can see that the result is what I want, e.g.

A  B  Z
1  1   1
1  2   1
1  .    0
2  1   1
etc (other combinations of A and B)

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