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st: RE: RE: list subjects with a similar value


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: RE: list subjects with a similar value
Date   Wed, 22 Mar 2006 22:32:15 -0000

Whoa! The question was just about _listing_. 
You just changed Raoul's dataset by throwing 
much of it away. 

duplicates tag dateofbirth, gen(tag)
sort dateofbirth
list id dateofbirth if tag 

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

Marino, Jennifer
 
> Maybe try something along these lines:
> 
> duplicates tag dateofbirth, gen(tag)
> drop if tag==0
> sort dateofbirth
> by dateofbirth: list id

Raoul C Reulen
  
> I have a large database and would like to list the idnumber of all
> subjects with the same date of birth. How do I do this? I have tried
> .duplicate, but can figure out how to do it. Thanks.

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