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Re: st: Generating an ID


From   Man Jia <jia.m@neu.edu>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Generating an ID
Date   Fri, 10 Oct 2008 13:33:03 -0400 (EDT)

Hi Maria,

In my opinion, you could reshape your data into wide version:
(where a twin pair is only one line)

name / Twin name / TwinID
Helena Harris / Joanne Moore / 1
Kevin Dedman / Tom Dedman / 2
Freya Lamb / Sandra Scott / 3

Please see -reshape -
And then generate twinID. And then reshape it back into long version.

Mandy

Maria Garden wrote:


>Dear Stata list,
>
>I have the following problem: I have data where people had been asked
>to provide their name and the name of their twin.
>
>I would like to generate an identifier for each twin pair. How can I
>do that without really search for each name? I have a couple of
>hundred people.
>
>My data looks like this:
>
>name / Twin name / TwinID
>Helena Harris / Joanne Moore / 1
>Kevin Dedman / Tom Dedman / 2
>Freya Lamb / Sandra Scott / 3
>
>Sandra Scott / Freya Lamb / 3
>Tom Dedman / Kevin Dedman / 2
>Joanne Moore / Helena Harris / 1
>
>How can I generate the variable TwinID? Can anyone help?
>
>Thank you very much.
>
>Maria
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