[R-sig-ME] Repeated measures for unbalanced data in R

[Manuel Spínola]

Dear list members,

Sorry for crossposting but I posted the following message to the 
R-SIG-Ecology and I did not have many answers.

I would like to run a repeated measure model in R and I would like to 
have your advice on how to parameterize the model and which package and 
function should I use..

I have:

Response variable: Disease rate (number of cases x 1000 people)
County (16 counties, it would be the subject)
Year: from 2002 to 2007

My data set is unbalanced (the counties do not have information for all 
the years).
Thank you very much in advance.
Best,

Manuel Spínola

-- 
Manuel Spínola, Ph.D.
Instituto Internacional en Conservación y Manejo de Vida Silvestre
Universidad Nacional
Apartado 1350-3000
Heredia
COSTA RICA
mspinola at una.ac.cr
mspinola10 at gamil.com
Teléfono: (506) 2277-3598
Fax: (506) 2237-7036