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st: mi estimate and xtmixed: reporting of groups


From   Fred Wolfe <fwolfe@arthritis-research.org>
To   statalist@hsphsun2.harvard.edu
Subject   st: mi estimate and xtmixed: reporting of groups
Date   Wed, 30 Sep 2009 16:09:08 -0500

Hi-

I wonder if I am missing something obvious.

xtmixed haq_ duration i.cocat ib3.q4_onsetyear fage i.sex ib2.edcat
ib45000.totinco if _mi_m==2 || patkey: duration , cov(uns) mle

reports  the Group variable," "Number of obs," and the "Number of groups"

However, mi estimate, cmdok dots):
xtmixed haq_ duration i.cocat ib3.q4_onsetyear fage i.sex ib2.edcat
ib45000.totinco if _mi_m==2 || patkey: duration , cov(uns) mle

reports the number of obs, but not the group variable or the number of
groups. I suppose the number of groups could differ according to each
imputation. But it would be helpful to have some information about
groups, for if I come back to the data later with -mi estimate using,
I may have forgotten the group N. So is it intended that we should
calculate the group N before running the mi estimate, or is there some
simple way I have overlooked to get this information?

Thanks,

Fred




reports


--
Fred Wolfe
National Data Bank for Rheumatic Diseases
Wichita, Kansas
NDB Office  +1 316 263 2125 Ext 0
Research Office +1 316 686 9195
fwolfe@arthritis-research.org

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