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Re: st: Binary panel data questions


From   brendan.halpin@ul.ie (Brendan Halpin)
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Binary panel data questions
Date   Thu, 09 Feb 2012 17:44:46 +0000

On Thu, Feb 09 2012, Kim Peeters wrote:

> The ailment is not very
> common and once you suffer from it, it is very unlikely that it will
> ever cure.

I may be taking this completely out of context, but if this is the case,
there is an argument that logistic regression is inappropriate, and
cloglog regression (which has a hazard rate interpretation) would be
better. (I don't know if this is appropriate for your data and research
question.)

> note: 5.X != 0 predicts failure perfectly
>       5.X dropped and 322 obs not used

I would consider doing something about this, for instance combining
category 5 with another category, if only to avoid dropping so many
cases. 

This causes problems in the xtlogit too, where the cases are not dropped.

>                            5  |   -55.3464   4613.941    -0.01   0.990    -9098.504    8987.812


Regards,

Brendan
-- 
Brendan Halpin,   Department of Sociology,   University of Limerick,   Ireland
Tel: w +353-61-213147  f +353-61-202569  h +353-61-338562;  Room F1-009 x 3147
mailto:brendan.halpin@ul.ie    ULSociology on Facebook: http://on.fb.me/fjIK9t
http://teaching.sociology.ul.ie/bhalpin/wordpress         twitter:@ULSociology

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