Re: st: Re: question about ordering of independent variable entry during testing

[Ian C Zink <izink@rsmas.miami.edu>]

Very true, when in doubt, play with the numbers to see if there is a 
difference in results...
thank you.
Martin Weiss wrote:
> Order does not matter once you have specified your dependent var in, 
> say, -regress-. When Stata must allocate your input to different sets 
> of covariates, as in -heckman-, the syntax diagram makes that clear in 
> the help file. But within a varlist, order should not matter. If you 
> are in doubt about that, try it on a simple example and see whether 
> the results differ...
>
> HTH
> Martin
> _______________________
> ----- Original Message ----- From: "Ian C Zink" <izink@rsmas.miami.edu>
> To: <statalist@hsphsun2.harvard.edu>
> Sent: Thursday, January 15, 2009 8:05 PM
> Subject: st: question about ordering of independent variable entry 
> during testing
>
>
> > Hello statalisters,
> >  My question regards the entry/order of listing of independent 
> > variables in a variety of statistical tests (MANOVA, ANOVA, GLMs, 
> > regressions).  Is there any difference in the order in which I place 
> > predictor variables into the model, or does stata simply read all 
> > entered variables as equal? Thank you,
> > Ian
> >
> > --
> > Ian C. Zink
> > Aquaculture Department - Division of Marine Affairs U. of Miami - 
> > Rosenstiel School of Marine and Atmospheric Science
> > 4600 Rickenbacker Causeway
> > Miami, FL 33149
> > office: 305-421-4915
> > fax: 305-421-4675
> > email: izink@rsmas.miami.edu
> >
> > *
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> > *   http://www.stata.com/support/statalist/faq
> > *   http://www.ats.ucla.edu/stat/stata/
>
>
> *
> *   For searches and help try:
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> *   http://www.ats.ucla.edu/stat/stata/


--
Ian C. Zink
Aquaculture Department - Division of Marine Affairs 
U. of Miami - Rosenstiel School of Marine and Atmospheric Science
4600 Rickenbacker Causeway
Miami, FL 33149
office: 305-421-4915
fax: 305-421-4675
email: izink@rsmas.miami.edu

*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/