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st: not uniquely identified observ in small panel

From   Joana Quina <[email protected]>
To   [email protected]
Subject   st: not uniquely identified observ in small panel
Date   Tue, 5 Jul 2005 20:36:44 +0100


My problem is that -xtdes- says my two key variables do not together
uniquely identify the cases in my large panel data set. I am working
with a small panel (N=32 and T=4).

I have no duplicates, though "duplicates report" wrongly says I have
one dupliacate observation. Curiously, "duplicates list" correctly
says I have none.
This appears to have happened to the only other query I could find on
this subject. I have tried changing width, but stata says "option
width() not allowed".

I don't know what else to do. It seems quite a ridiculous problem for
such a small data set! Thank you in advance for any pointers.


PS - I have Stata 8

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