Alex
> -----Original Message-----
> From: Alex Ogan [mailto:[email protected]]
> Sent: 12 May 2006 19:00
> To: Schaffer, Mark E
> Subject: RE: RE: Why is some observations lost when
> specifying bw(1) in xtivreg2
>
> Why would the number of observations decrease by 68, rather
> than 91, though?
Good question. Maybe there are missing data after all? David probably
needs to investigate which obs are dropped using the e(sample) macro.
--Mark
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of
> Schaffer, Mark E
> Sent: Friday, May 12, 2006 1:55 PM
> To: [email protected]
> Subject: st: RE: Why is some observations lost when
> specifying bw(1) in
> xtivreg2
>
> David,
>
> > -----Original Message-----
> > From: [email protected]
> > [mailto:[email protected]] On Behalf Of David
> > Granlund
> > Sent: 12 May 2006 15:38
> > To: [email protected]
> > Subject: st: Why is some observations lost when specifying
> > bw(1) in xtivreg2
> >
> > I have a sample of 910 observations, 91 groups and 10
> years, without
> > any missing data. When I estimate a robust fixed effect model the
> > Number of obs is correctly reported as 910, but when I also specify
> > bw(1) the Number of obs is reported to be 842. Can someone help me
> > with an explanation to this?
>
> This came up on the list earlier this week:
>
> http://www.stata.com/statalist/archive/2006-05/msg00295.html
>
> Cheers,
> Mark
>
> > Thank you in advance for your help!
> >
> > Regards,
> > David Granlund
> >
> >
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