st: Merging observations

["Jim O'Grady" <jimogr@gmail.com>]

Hi Folks,

I'm hoping this is a simple question :)

I have a dataset like this:

Case Person var1 var2 var3
345   01         1     .      .
345   01         .      1     .
345   02         .      1     .
345   02         .      .      1

I want to merge the observations which have the same identifiers (case
and person) to get

Case Person var1 var2 var3
345   01         1     1      .
345   02         .      1     1

All help appreciated,

Thanks,

Jim
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