[R] clustering and stratification

[Jason Bond]

Hello,

   Does R have any capabilities (or are there any add on packages) which 
can do estimation of standard statistical models (means, regression, 
logistic regression, etc) which take into account not only weights (e.g. 
post-stratification weights) but also the sample design, such as 
stratification and clustering information (to compute a robust taylor 
linearized variance estimator, for example)?  Thanks much for any input,

   Jason

_______________________________

Jason C. Bond, Ph.D.
Biostatistician, Associate Scientist
Public Health Institute
Alcohol Research Group
2000 Hearst Avenue
Berkeley, CA  94709

Telephone: 	(510) 642-7965
Fax:		(510) 642-7175