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Re: st: RE: Probit - predictive efficiency


From   <irodriguez@utdt.edu>
To   <statalist@hsphsun2.harvard.edu>
Subject   Re: st: RE: Probit - predictive efficiency
Date   Mon, 3 Apr 2006 09:22:34 -0300 (ART)

I mean predictive efficiency for prediction and cassification tables.
Menard recommended 3 indexes of predictive efficiency with the choice
among the base rate (cut point)and the selection ratio (either or both may
be fixed)
The indexes are based on the table that lstat command show
for example
l=1-(n-Sum(fii))/(n-nmode)
t=1-(n-sum(fii))/(sum(fi(n-fi)/n))
ti=1-(n-sum(fii))/(n-sum(Efii))


> Ines:
> What do you mean with predictive efficiency? A citation like
> (Menard 2004) is not enough in a multidisciplinary list like
> Statalist.
> Maarten
>
> -----------------------------------------
> Maarten L. Buis
> Department of Social Research Methodology
> Vrije Universiteit Amsterdam
> Boelelaan 1081
> 1081 HV Amsterdam
> The Netherlands
>
> visiting adress:
> Buitenveldertselaan 3 (Metropolitan), room Z214
>
> +31 20 5986715
>
> http://home.fsw.vu.nl/m.buis/
> -----------------------------------------
>
> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu]On Behalf Of
> irodriguez@utdt.edu I`m running a probit model
> I need to calculate some Predictive efficiency indexes (menard 2000)
> I`ve tried with "lstat" command (it gives me the classification table)
> but I would like to know if there exist some way to calculate the
> indexes not by hand
>
>
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