Re: st: nbreg with fixed effect vs xtnbreg,fe

[Richard Williams <richardwilliams.ndu@gmail.com>]

I've read descriptions of -clogit- that left me wondering whether the 
authors were talking about the same command. Similarly confusing is 
that Stata's panel data commands are often useful when you do not 
have panel data. It might be useful if the Stata help made it clear 
that the -xt- commands can be used for many different things, but 
maybe that would just confuse things further. I don't think it is too 
unusual for techniques to be developed for radically different 
reasons, and then it turns out that mathematically they are the same technique.

At 11:27 AM 2/7/2012, Muhammad Anees wrote:
> Yes, observations might be siblings. I agree.
> Thank you Richard.
>
> Best,
> Anees
>
> On Tue, Feb 7, 2012 at 9:24 PM, Richard Williams
> <richardwilliams.ndu@gmail.com> wrote:
> > At 07:51 AM 2/7/2012, Muhammad Anees wrote:
> >>
> >> Yes I totally admit my confusing line by defining time periods as time
> >> variable, but what I have understood so far (which is very limited)
> >> about panel data fixed effects, is that there should be observations
> >> for two time periods atleast, even if not the time is not existing in
> >> the data.
> >
> >
> > This is not my strong area, but I think the key thing is that you need two
> > or more of something; it doesn't need to be time periods, it could, for
> > example, be siblings. As far as I can tell, the -clogit- command is pretty
> > much the same as -xtlogit, fe- and yet the manual's examples given for
> > -clogit- are very different than the examples for -xtlogit, fe- .
> >
> >
> >
> > -------------------------------------------
> > Richard Williams, Notre Dame Dept of Sociology
> > OFFICE: (574)631-6668, (574)631-6463
> > HOME:   (574)289-5227
> > EMAIL:  Richard.A.Williams.5@ND.Edu
> > WWW:    http://www.nd.edu/~rwilliam
> >
> > *
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>
>
>
> --
>
> Best
> ---------------------------
> Muhammad Anees
> Assistant Professor/Programme Coordinator
> COMSATS Institute of Information Technology
> Attock 43600, Pakistan
> http://www.aneconomist.com
>
> *
> *   For searches and help try:
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> *   http://www.stata.com/support/statalist/faq
> *   http://www.ats.ucla.edu/stat/stata/

-------------------------------------------
Richard Williams, Notre Dame Dept of Sociology
OFFICE: (574)631-6668, (574)631-6463
HOME:   (574)289-5227
EMAIL:  Richard.A.Williams.5@ND.Edu
WWW:    http://www.nd.edu/~rwilliam

*
*   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/