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st: RE: observations completely determined


From   <J.Fischer@lse.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: observations completely determined
Date   Thu, 15 Jun 2006 21:32:53 +0100

You might resolve it by changing your model specification. Try to define
broader categories w.r.t to the controling variables 

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of
paola.gritti@unibg.it
Sent: 15 June 2006 10:11
To: statalist@hsphsun2.harvard.edu
Subject: st: observations completely determined

the regression (oprobit) is calculated (the coefficients and also the
standard errors), but a message is shown:
"note: [a number] observations completely determined.  Standard errors
questionable.".
Could it be only a warning?Or is it always an error message?How could I
resolve it?

Thanks
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