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st: RE: Transforming Unique IDs


From   Jan Bryla <[email protected]>
To   "[email protected]" <[email protected]>
Subject   st: RE: Transforming Unique IDs
Date   Mon, 23 May 2011 12:42:39 +0200

I am not quite sure what the objective is, but the group function with -egen- would generate a new id based on the order of the old id.

Egen newid=group(id)

Regards
Jan Bryla

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Dennis Kramer
Sent: 23. maj 2011 12:18
To: [email protected]
Subject: st: Transforming Unique IDs

Greetings,

I am working with a large panel data set and I need to transform the
current unique IDs into a new set of unique IDs while maintaining the
panel nature of the data. For example,

Year 1     ID1     Var 1    Var2     Var3    NewID1
Year 2     ID1     Var 1    Var2     Var3    NewID1
Year 3     ID1     Var 1    Var2     Var3    NewID1
Year 1     ID2     Var 1    Var2     Var3    NewID2
Year 2     ID2     Var 1    Var2     Var3    NewID2
Year 3     ID2     Var 1    Var2     Var3    NewID2
Year 1     ID3     Var 1    Var2     Var3    NewID3
Year 2     ID3     Var 1    Var2     Var3    NewID3
Year 3     ID3     Var 1    Var2     Var3    NewID3

does anyone have a algorithm to produce a new set of unique IDs while
maintaining the panel function? I have looked through the current FAQs
and past listserv discussions and have not found any suggestions that
would create a new ID while maintaining the panel groupings.

Thank you,
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