[R] R2 in mixed model

Spencer Graves spencer.graves at pdf.com
Sat Mar 18 05:13:51 CET 2006

	  The coefficient of deterimination, R^2, is defined as the percent of 
the variance explained.  For a mixed model, we need to ask, "percent of 
WHICH variance?"  For more comments, I tried "RSiteSearch" with various 
kew words.  The most relevant comment I found was 
"http://finzi.psych.upenn.edu/R/Rhelp02a/archive/48023.html", which I 
got from RSiteSearch("R squared with mixed effects").

	  hope this helps.
	  spencer graves

Angelo Colombo wrote:

> Hello.
> I have some basic question for you!.
> Has calculating R2 sense in mixed model? I think no! But i don't why!
> Thank in advance for your help
> Angelo
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