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

From   Maarten Buis <>
Subject   Re: st: # of Obs. in -stcox- result
Date   Tue, 11 Oct 2011 17:57:31 +0200

It is the number of observations reported by -stset- minus any
observation that has missing values on one ore more covariates.

Hope this helps,

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
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