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Re: st: cluster effect in logit


From   Roger Newson <roger.newson@kcl.ac.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: cluster effect in logit
Date   Thu, 02 Jun 2005 13:26:12 +0100

At 13:13 02/06/2005, Manuela wrote:
Dear all,

Can somebody tell me what estimate Stata computes when using the cluster option
(specifically while running a logit model)? Is it Huber-White robust variance estimates
that the option computes? I cannot seem to find the answer on the manuals.
Yes. If you specify the -cluster- option, then that implies the -robust()- option, and therefore the clustered Huber variance estimates. If in Stata you type

whelp robust

then you should probably find the manual references in the on-line help.

Hope this helps.

Roger



--
Roger Newson
Lecturer in Medical Statistics
Department of Public Health Sciences
Division of Asthma, Allergy and Lung Biology
King's College London

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London SE1 3QD
United Kingdom

Tel: 020 7848 6648 International +44 20 7848 6648
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or 020 7848 6605 International +44 20 7848 6605
Email: roger.newson@kcl.ac.uk
Website: http://phs.kcl.ac.uk/rogernewson/

Opinions expressed are those of the author, not the institution.

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