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Re: st: # of Obs. in -stcox- result


From   Muyang Zhang <zmyfudan@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: # of Obs. in -stcox- result
Date   Wed, 12 Oct 2011 11:04:34 +0800

This is the regular case in all kinds of analysis. My problem is that
the number of observations reported by -stset- is smaller than that
using a linear model with the same set of covariates.

On Tue, Oct 11, 2011 at 11:57 PM, Maarten Buis <maartenlbuis@gmail.com> wrote:
>
> It is the number of observations reported by -stset- minus any
> observation that has missing values on one ore more covariates.
>
> Hope this helps,
> Maarten
>
> On Tue, Oct 11, 2011 at 5:27 PM, Muyang Zhang wrote:
> > I am now confused with the reported number of observations in the
> > result of -stcox-. It is much more smaller than the total number of
> > observations in the sample, and is also different with the result
> > reported by -stset-. Does anyone know what the number of observations
> > in -stcox- mean?
>
> --------------------------
> Maarten L. Buis
> Institut fuer Soziologie
> Universitaet Tuebingen
> Wilhelmstrasse 36
> 72074 Tuebingen
> Germany
>
>
> http://www.maartenbuis.nl
> --------------------------
> *
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--
Zhang Muyang
China Center for Economic Research
Peking University
Beijing, 100871
China.

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