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RE: st: importance weights


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: importance weights
Date   Wed, 19 Feb 2003 18:01:31 -0000

B. Burcin Yurtoglu
> 
> I was just curious about how the iweight functions.  I do 
> not have to use it.
> But, still I find it difficult to understand why and the 
> how the number of observations change.
> burcin

The "number of observations" at least with -regress [iw=]- 
appears to be the floor of the sum of the weights. 

Nick 
n.j.cox@durham.ac.uk 

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