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Re: st: AW: unbalanced panel


From   sdimou@cc.uoi.gr
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: AW: unbalanced panel
Date   Thu, 22 Jul 2010 16:05:01 +0300

Dear Martin,
many many thanks for your precious advice!!!
S.


Αρχικό μήνυμα από  Martin Weiss <martin.weiss1@gmx.de>:

>
> <>
>
> No, it is not hell! Collinearity between the independent vars and the panel
> identifier prevents Stata from estimating your model. This would be the
> reaction of every other software as well, I guess.
>
> Find out which variable is causing the problem! To this end, type
>
> *************
> xtset
> corr `r(panelvar)' x*
> *************
>
> where "x*" should be replaced with your independent variables that you had
> fed to -xtreg- when the problem occurred. Any correlation off the main
> diagonal should be examined whether it approaches 1 or -1.
>
> HTH
> Martin
>
> -----Ursprόngliche Nachricht-----
> Von: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von
> sdimou@cc.uoi.gr
> Gesendet: Donnerstag, 22. Juli 2010 12:52
> An: statalist!!!
> Betreff: st: unbalanced panel
>
> Dear users!
> Having destringed and sorted my data, I tried the xtreg command for my
> unbalanced panel!
> But... "independent variables are collinear with the panel variable"
> What should I do???
> ...Stata seems a hell for me!!!
>
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