R help - Apr 2006 - modelling heteroscedasticity in a randomized cluster model

Hello,

 

Having a randomized cluster model and assuming heteroscedasticity at the
second level, I like to estimate the variance components for the (two)
different arms seperately. How can this been done (in R or S-Plus)?

 

Kind regards,

Elly Korendijk

 

 

Department of Methodology and Statistics

Faculty of Social Sciences

Universiteit Utrecht

 

Heidelberglaan 2, De Uithof

P.O. Box 80140, 3508 TC Utrecht, The Netherlands

 

Telephone:  +31 30 253 14 90  /  44 38

Fax:           +31 30 253 57 97
E-mail:        E.J.H.Korendijk@fss.uu.nl

 


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