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st: Re: RE: RE: Re: AW: AW: ereturn list with xtivreg2


From   "Martin Weiss" <[email protected]>
To   <[email protected]>
Subject   st: Re: RE: RE: Re: AW: AW: ereturn list with xtivreg2
Date   Tue, 10 Mar 2009 20:23:30 +0100

<>

Mark,

Now that you are with us, just briefly: Is there a reason for e(df_r) not to be there in case -small- is not specified, or is this an omission?


HTH
Martin
_______________________
----- Original Message ----- From: "Schaffer, Mark E" <[email protected]>
To: <[email protected]>
Sent: Tuesday, March 10, 2009 8:12 PM
Subject: st: RE: RE: Re: AW: AW: ereturn list with xtivreg2


David,

Ignore my email below, at least with respect to e(df_r). Martin found the answer: you need the -small- option.

I think you still have a problem, though - too few clusters to use -cluster-.

--Mark

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of
Schaffer, Mark E
Sent: Tuesday, March 10, 2009 6:34 PM
To: [email protected]
Subject: st: RE: Re: AW: AW: ereturn list with xtivreg2

Davide,

I'm the author of -xtivreg2- so maybe I should take over from
Martin...

Can you run your regression again WITHOUT cluster and send us
the list of returned macros?  I think part of the problem is
that you have more regressors than clusters, and the
cluster-robust var-cov matrix is not full rank.

Can you also tell us which version you are using?  -which
xtivreg2- will do it.

And can you share the command line and output with us?

--Mark

> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of
> Davide Cantoni
> Sent: Tuesday, March 10, 2009 6:13 PM
> To: [email protected]
> Subject: st: Re: AW: AW: ereturn list with xtivreg2
>
> I get a gazillion of results, just no e(df_r). Cf:
>
> (And, as I said, I have the same issue whether or not I have
> clustering or not, robust se or not, etc etc.)
>
> > scalars:
> >          e(inexog_ct) =  11
> >          e(exexog_ct) =  1
> >           e(endog_ct) =  1
> >         e(partial_ct) =  0
> >            e(N_clust) =  8
> >          e(sdofminus) =  0
> >           e(dofminus) =  8
> >                 e(r2) =  .9229592972559002
> >               e(rmse) =  4.482742177668595
> >                e(rss) =  1728.168059104612
> >                e(mss) =  20703.71531616696
> >               e(r2_a) =  .9021374857034408
> >                  e(F) =  2.799026483928738
> >                 e(Fp) =  .0897520696224036
> >               e(Fdf1) =  12
> >               e(Fdf2) =  7
> >                 e(yy) =  22431.88337527158
> >                e(yyc) =  22431.88337527158
> >                  e(N) =  94
> >               e(df_m) =  20
> >          e(singleton) =  0
> >            e(sigma_e) =  4.482742177668595
> >               e(df_a) =  8
> >               e(df_b) =  12
> >                e(N_g) =  8
> >              e(g_max) =  12
> >              e(g_min) =  11
> >              e(g_avg) =  11.75
> >        e(partialcons) =  0
> >               e(cons) =  0
> >                e(cdf) =  25.73075120843825
> >            e(widstat) =  8.208461212944977
> >                 e(cd) =  .3477128541680844
> >                e(idp) =  .2053493221619689
> >               e(iddf) =  1
> >             e(idstat) =  1.603914697363933
> >                e(jdf) =  0
> >                  e(j) =  .
> >                 e(ll) =  -270.2217758044246
> >              e(rankV) =  7
> >              e(rankS) =  7
> >             e(rankxx) =  12
> >             e(rankzz) =  12
> >                e(r2c) =  .9229592972559002
> >                e(r2u) =  .9229592972559002
>
> Davide
>
>
> > <>
> >
> >
> > You are more than welcome :-) Your issue is weird indeed!
> What do you get
> > with -ereturn list- after applying -xtivreg2- to your data?
> I mean, does
> > Stata populate the rest of the returned values?
> >
> >
> >
> > HTH
> > Martin
> >
> >
> > -----Ursprüngliche Nachricht-----
> > Von: [email protected]
> > [mailto:[email protected]] Im Auftrag
> von Davide Cantoni
> > Gesendet: Dienstag, 10. März 2009 16:29
> > An: [email protected]
> > Betreff: st: Re: AW: AW: ereturn list with xtivreg2
> >
> > Well, curious... I have -adoupdate-d my -xtivreg2-, just
to be sure.
> > When I run your example, I get in fact e(df_r) (thanks for
> pointing it
> > out in red!). But when I run my own command on my
dataset, I do not
> > get anything:
> >
> > . disp e(df_r)
> > .
> >
> > This happens with and without clustering, with and without robust
> > s.e., with and without excluded instruments. In every one of these
> > cases, I do not have anything saved in e(df_r). My data
are properly
> > -tsset-.
> >
> > Davide
>
> *
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>


--
Heriot-Watt University is a Scottish charity
registered under charity number SC000278.


*
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--
Heriot-Watt University is a Scottish charity
registered under charity number SC000278.


*
*   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/


*
*   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/



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