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st: RE: RE: var-covar matrix from logistic regression


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: RE: var-covar matrix from logistic regression
Date   Wed, 25 Feb 2009 15:52:51 -0000

As Martin also signalled, it's in e(V), not e(b). 

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


-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Nick Cox
Sent: 25 February 2009 15:45
To: statalist@hsphsun2.harvard.edu
Subject: st: RE: var-covar matrix from logistic regression

Stata isn't sending any emails today, but she asked me to tell you this: 

mat li e(b)

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

Tomas Lind

Dear Stata,

I have done logistic regression with logit.

How can I look at the variance-covariance matrix? I understand it is saved
in something called e(b), but I can´t see it!

Can I use one of the coefficients like it is possible to use betas in some
calculations? How to do it!


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