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Re: st: RE: FITINT: does it test all two-way interactions simultaneously?


From   sjsamuels@gmail.com
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: FITINT: does it test all two-way interactions simultaneously?
Date   Tue, 19 May 2009 14:58:27 -0400

John, this seems to be a question that you can answer by test which
specifies a few interaction terms. Be sure to report back your
findings.

-Steve

On Tue, May 19, 2009 at 12:20 PM, Nick Cox <n.j.cox@durham.ac.uk> wrote:
> -fitint- is a user-written program from SSC. Please remember to specify
> where user-written stuff you refer to comes from.
>
> In this case, I don't recognise either of the authors as contributors to
> the list. Either way, if you get no good answers to this question, you
> may need to look at the code -- which appears to be well structured and
> commented -- and/or to contact the program authors directly.
>
> Nick
> n.j.cox@durham.ac.uk
>
> John LeBlanc
>
> I have an -ologit- model with 8 predictor variables and fortunately a
> large dataset. I'm using -fitint- to see if there are any interesting
> two-way interactions among the 28 possibilities. Does -fitint- put all
> 28
> in simultaneously or does it (I hope) test them one by one?
>
> by the way, what is the purpose of the -factors- option? At this point,
> I'm simply copying all dependent variables into both -factors()- &
> -twoway()-. I can't figure this out from the .hlp file.
>
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