Dear Sir/Madam:
I have a question about computing adjusted mean using R. I am really new to this area.
 
Suppose I have a response Y, and covariate: treat (binary), sex (binary) race (catogorical ) and age (continuous).
the model: Y~treat+sex+race+age;
I am asked to compute the adjusted mean of Y for treat=1.
 
would you please tell me (in detail) how I can do this? I searched the R homepage and got some information, but not quite helpful.
 
thanks a lot,
 
Steven L. Lu
 
 
 


		
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