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Re: st: xtlogit fe


From   Dirk Nachbar <Dirk.Nachbar@dwp.gsi.gov.uk>
To   statalist <statalist@hsphsun2.harvard.edu>
Subject   Re: st: xtlogit fe
Date   18 Jul 2006 13:19:57 +0100

Jeph

I exclude groups which have only 1s or only 0s.

Dirk Nachbar

Assistant Economist

Pensim2

Department for Work and Pensions

Level 4, The Adelphi

1-11 John Adam St

WC2N 6HT London

020 796 28531

jherrin@flyingbuttress.net 18/07/2006 13:13 To statalist@hsphsun2.harvard.edu@internet cc Subject Re: st: xtlogit fe

Some output would be helpful. But if you are running xtlogit, why

would you want to exclude all outcomes that are 1 or 0? If there are

no 0s, then xtlogit (like logit) will fail.

Jeph

Dirk Nachbar wrote:

> Dear all

>

> I want to run an xtlogit with fixed effects but Stata won't do it. It

> complains about multiple positive outcomes within groups. I did exclude

> observations where all outcomes are 1 or 0. It then reports a sorting

> error. Why?

>

> Dirk Nachbar

>

> Assistant Economist

>

> Pensim2

>

> Department for Work and Pensions

>

> Level 4, The Adelphi

>

> 1-11 John Adam St

>

> WC2N 6HT London

>

> 020 796 28531

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