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Re: st: RE: Shrinkage factor


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: Shrinkage factor
Date   Thu, 15 Oct 2009 09:20:02 +0000 (GMT)

--- On Thu, 15/10/09, Evans Jadotte wrote:
> In fact, this is the formula I have. My problem is the
> malleability of n_j. Since I have 496 clusters at level-2
> with many unbalanced observations within each cluster, the
> manual calculation can make one go crazy!

Getting those number of cases in unbalanced pannels is 
relatively easy when using -bys-:

gen miss = missing(var1, var2, var3)
bys miss id1 id2 id3: gen long nj = _N if miss == 0

Hope this helps,
Maarten

--------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany

http://www.maartenbuis.nl
--------------------------




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