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Re: st: stata9.0 and 9.2..clustering?


From   n j cox <n.j.cox@durham.ac.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: stata9.0 and 9.2..clustering?
Date   Mon, 28 May 2007 15:58:35 +0100

The Statalist FAQ does give the advice, etched
into my inner being ever since I wrote the original:

"Say exactly what you typed and exactly what Stata typed (or did) in response. N.B. exactly!"

I can see nothing in your question even about what Stata commands
you are using and whether they are official or user-written.

If you read through the help for -whatsnew- you will get information
on what has changed in official Stata since the release of Stata 9.0.
Otherwise I suggest that more information is needed.

Nick
n.j.cox@durham.ac.uk

alessia matano

there is a thing really strange that is happening using either
stata9.0 or stata 9,2.
I am estimating a panel equation where the id is the worker, and of
course t=year.
I do my estimations clustering by the region where the worker works.
(So it is possible that from one year to another the worker can change
region of work).
So, when I use stata 9.0 it does the estimates. When I use stata 9.2
it says "Panels non nested within cluster".

This sentence has happeared to me already in stata 9.0 but only when I
tried to do the regression with lagged variables, so that for workers
changing region it had sense in effect.
What could is mean to you?
What is that the problem?

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