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Re: RE: st: retrieve t values & syntax " ' ' "


From   "Martin Weiss" <Martin.Weiss1@gmx.de>
To   statalist@hsphsun2.harvard.edu
Subject   Re: RE: st: retrieve t values & syntax " ' ' "
Date   Sat, 14 Mar 2009 19:36:13 +0100

Wow, that was a new record for chopping off messages, here is the complete code

*********
 webuse nlswork, clear
 generate age2 = age^2
 generate ttl_exp2 = ttl_exp^2
 generate tenure2 = tenure^2
 generate byte black = race==2
 xtset idcode

 xtreg ln_w grade age* ttl_exp* tenure* black not_smsa south, fe
 
mata
    mata clear
    Y=(st_matrix("e(b)")',diagonal(sqrt(st_matrix("e(V)"))))
    Y=(Y, Y[.,1]:/Y[.,2])
    Y=(Y,2*ttail(st_numscalar("e(df_r)"),abs(Y[.,3])))
    st_matrix("mymat",Y)
end

mat l mymat
*********

HTH
Martin
-------- Original-Nachricht --------
> Datum: Sat, 14 Mar 2009 19:06:35 +0100
> Von: "Martin Weiss" <Martin.Weiss1@gmx.de>
> An: statalist@hsphsun2.harvard.edu
> Betreff: Re: RE: st: retrieve t values & syntax " \' \' "

>  xtreg ln_w grade age* ttl_exp* tenure* black not_smsa south, fe
>  
> mata
> 	mata clear
> 	Y=(st_matrix("e(b)")',diagonal(sqrt(st_matrix("e(V)"))))
> 	Y=(Y, Y[.,1]:/Y[.,2])
> 	Y=(Y,2*ttail(st_numscalar("e(df_r)"),abs(Y[.,3])))
> 	st_matrix("mymat",Y)
> end
> 
> mat l mymat
> 
> -------- Original-Nachricht --------
> > Datum: Sat, 14 Mar 2009 13:00:37 +0000 (GMT)
> > Von: Maarten buis <maartenbuis@yahoo.co.uk>
> > An: stata list <statalist@hsphsun2.harvard.edu>
> > Betreff: RE: st: retrieve t values & syntax " \' \' "
> 
> > 
> > --- James Ferng wrote:
> > > I have two problems:
> > >
> > > (1) How can I retrieve the t values after running xtreg instead e(V)?
> > > (2) To use "foreach" or "forvar", what is the syntax " ' ' " on the 
> > > keyboard of Apple computer?
> > 
> > The answer to the first question can be found in Buis (2007). 
> > 
> > Buis, Maarten L. (2007) "Stata tip 54: Where did my p-values go?", The
> > Stata Journal, 7(4): 584-586. 
> > http://www.stata-journal.com/article.html?article=st0137
> > 
> > A pre-publication draft can be found here:
> > http://home.fsw.vu.nl/m.buis/wp/pvalue.html
> > 
> > I do not understand the second question, so I can't comment on that.
> > 
> > Hope this helps,
> > Maarten
> > 
> > -----------------------------------------
> > Maarten L. Buis
> > Institut fuer Soziologie
> > Universitaet Tuebingen
> > Wilhelmstrasse 36
> > 72074 Tuebingen
> > Germany
> > 
> > http://home.fsw.vu.nl/m.buis/
> > -----------------------------------------
> > 
> > 
> >       
> > 
> > *
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> 
> -- 
> Martin Weiss
> Hackersteigle 3
> 72076 Tübingen
> 00497071/793535
> 00491784597218
> 
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-- 
Martin Weiss
Hackersteigle 3
72076 Tübingen
00497071/793535
00491784597218

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