How to estimate the scale parameter in R

"tp" == ts p <pts007 at hotmail.com>
    on Sun, 09 Sep 2007 14:57:39 +0000 writes:

tp> I use SAS PROC GLIMMIX to estimate generalized linear mixed model. The 
    tp> procedure can estimate the scale parameter and R-side random effects of 
    tp> GLMM. I wonder if I want to estimate the scale parameter and R-side random 
    tp> effects in R. I wonder which function in R I should use to do that.

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Martin