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RE: st: general-to-specific GETS algorithm


From   Nick Cox <n.j.cox@durham.ac.uk>
To   "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu>
Subject   RE: st: general-to-specific GETS algorithm
Date   Fri, 27 Jan 2012 18:22:42 +0000

I agree with Clive about -stepwise-, but I also don't think -stepwise- is close to what econometricians mean by general-to-specific. For them the person in mind is more likely to be (Sir) David Hendry than Frank Harrell. I am also wondering if the algorithm is that simple why someone hasn't implemented this long ago.... 

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

clivelists@googlemail.com

I wouldn't bother with that, personally; Google-search the name of Frank Harrell (mentioned frequently on the list) for squillions of reasons why.

Anyway, why isn't something like factor analysis, from which you could derive factor scores and use them in a model (not tested), good enough for you?

From: Jorge Eduardo Pérez Pérez <perez.jorge@ur.edu.co>

Take a look at -stepwise-

On Fri, Jan 27, 2012 at 8:18 AM, Cecchi, Francesco
<francesco.cecchi@wur.nl> wrote:

> I would like to use a general-to-specific approach to select my econometric model. I was wondering if anyone has a simple GETS algorithm/do file to run on Stata (or knows where to find it).

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