repeated measures with random effects

Have you tried 'RSiteSearch("repeated measures with random 
effects")'?  I just got 74 hits, some of which might interest you.

	  Also, have you reviewed Pinheiro and Bates (2000) Mixed-Effects 
Models in S and S-Plus (Springer)?  This book, the lme function in 
library(nlme) and the more recent lmer and lme4 / Matrix packages, are 
to my knowledge the state of the art in this area.

	  In addition, have you read the posting guide 
(www.R-project.org/posting-guide.html)?  People who follow that guide, I 
believe, tend to get quicker, more useful replies.  In particular, I've 
looked at your post several times since it appeared and each time 
decided not to reply, because I didn't have the time I thought it would 
take to offer a useful reply.  If you had included more complete example 
that I could have copied into R and tried -- possibly with alternatives 
-- in less than, say, 40 seconds, I might have more useful comments for 
you and might have replied sooner.

	  spencer graves

Dear all,
I'm interested in analysing a reapeated measure desing where plant
height (H) was measured 3 times (Time). The experimental design
include 2 fixed factor (say A and B) in which A is nested in B, and a
random factor (C, the plot), using the aov().

So my first idea would be something like:

aov(H ~ B * A %in% B * Time + Error(id) )

where id is the factor coded for the repeated subjects.
But my question is how to include the random factor C ?

Any help would be appreciated. Thanks

Juli


--
Juli G. Pausas
CEAM & UA
http://www.ceam.es/lass/pausas.htm

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Spencer Graves, PhD
Senior Development Engineer
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