[R-sig-ME] independent random effects with equal variances

[Hae Kyung Im]

Dear list,

does anyone know of an easy way to enforce equal variance for two independent random effects?

So I would like to fit this model with equal variances for R1 and R2

y ~ x + (1|R1) + (1|R2)

Thanks
Haky


------------------------------------- 
Hae Kyung Im, PhD
Research Associate (Asst. Professor)
haky at uchicago.edu
Phone:  773-702-3898          FAX:  773-702-1979
Department of Health Studies - Room – AMB R321B
University of Chicago                               
5841 S. Maryland Ave. MC 2007
Chicago, IL 60637
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