Jeph wrote:
Seems this should be easy, but the only solutions I
can think of are tedious.
I have two group identifiers in my data of 108k
observations. I would like to verify that that
they identify the same groups - there are about
800 groups, which rules out the simple inspection
routes.
======================================================
- and C�lio gave good advice involving -assert-.
I have the problem with -assert- that it is not very
assertive; it remains silent if things are OK. That is
often good, but here I prefer a positive confirmation.
I would:
. generate samegroup = (g1==g2)
. tab1 samegroup
-> tabulation of samegroup
samegroup | Freq. Percent Cum.
------------+-----------------------------------
1 | 108,000 100.00 100.00
------------+-----------------------------------
Total | 108,000 100.00
This will work both with numeric and string group ids.
Hope this helps
Svend
________________________________________________________
Svend Juul
Institut for Folkesundhed, Afdeling for Epidemiologi
(Institute of Public Health, Department of Epidemiology)
Vennelyst Boulevard 6
DK-8000 Aarhus C, Denmark
Phone, work: +45 8942 6090
Phone, home: +45 8693 7796
Fax: +45 8613 1580
E-mail: [email protected]
_________________________________________________________
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