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
[email protected]
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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