There are many arguments why you should not use stepwise at. A nice
collection can be found here:
http://www.stata.com/support/faqs/stat/stepwise.html
--Maarten
--- "[email protected]" <[email protected]> wrote:
> I found the mistake.
> Sorry for bothering!
> Stefan
>
> On Sat, Apr 26, 2008 at 5:44 PM, [email protected]
> <[email protected]> wrote:
> > Hello,
> >
> > I am running a multiple logistic regression with a backward
> elimination
> >
> > sw logit y x v1 v2 v3 v4 v5 v6 v7 v8, pr(.05)
> >
> > logit y x
> >
> >
> > I arrive at the final model (y x). But if I run the final model
> right
> > away I get different numbers than when I use backward elimination
> to
> > reach the final model.
> > Any clues?
> > Thanks,
> > Stefan
> > *
> > * For searches and help try:
> > * http://www.stata.com/support/faqs/res/findit.html
> > * http://www.stata.com/support/statalist/faq
> > * http://www.ats.ucla.edu/stat/stata/
> >
> *
> * For searches and help try:
> * http://www.stata.com/support/faqs/res/findit.html
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands
visiting address:
Buitenveldertselaan 3 (Metropolitan), room Z434
+31 20 5986715
http://home.fsw.vu.nl/m.buis/
-----------------------------------------
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*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
