Try this:
******
clear*
set obs 1000
g byte var1=1 if uniform()<0.7
replace var1=0 if var1==.
g byte var2=1 if uniform()<0.5
replace var2=0 if var2==.
g byte indicator=var1==1 & var2==1 | var1==0 & var2==0
ta var1 var2 if ind==0
ta var1 var2 if ind==1
******
Martin Weiss
_________________________________________________________________
Diplom-Kaufmann Martin Weiss
Mohlstrasse 36
Room 415
72074 Tuebingen
Germany
Fon: 0049-7071-2978184
Home: http://www.wiwi.uni-tuebingen.de/cms/index.php?id=1130
Publications: http://www.wiwi.uni-tuebingen.de/cms/index.php?id=1131
SSRN: http://papers.ssrn.com/sol3/cf_dev/AbsByAuth.cfm?per_id=669945
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Olga Lyashevskaya
Sent: Tuesday, March 18, 2008 4:56 PM
To: [email protected]
Subject: st: Simultaneous occurance
Dear all,
There are two binary variables in my sample, where 1
is presence and 0 is absence of the particular
characteristic. I want to identify those cases where I
get either both 0's or both 1's
Any suggestions?
Thank you in advance,
Olga
____________________________________________________________________________
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