I am surprised: a Generalized Linear Model does not have clusters, nor
did glm() allow clusters in any version of S-PLUS I have used.
I suspect this is a GEE model, for which see packages gee, geepack and
yags (not on CRAN) under R. But you can also have Generalized Linear
Mixed Models, and there are several R packages to handle those.
On Sat, 31 Jan 2009, Veerappa Chetty wrote:
Hi,In SPlus, I use the function 'cluster' with GLM to adjust for correlated
errors within a cluster ( e.g. cluster(ID)) as a covariate. Is there a
similar function in R to use with GLM ? I am new to R. Thanks.
V.K. Chetty
--
Professor of Family Medicine
Boston University
Tel: 617-414-6221, Fax:617-414-3345
emails: chett...@gmail.com,vche...@bu.edu
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