Ronaldo
See the article on lmer pasted below for syntax. It is the only current source
documenting the code. In lmer(), the nesting structure for the ranmdom effects
is handled in a slightly different way. If your observations are nested as you
note, then you can use
> lmer(y~x1 + x2 +(1|x1) + (1|x2), data)
@Article{Rnews:Bates:2005,
author = {Douglas Bates},
title = {Fitting Linear Mixed Models in {R}},
journal = {R News},
year = 2005,
volume = 5,
number = 1,
pages = {27--30},
month = {May},
url = {http://CRAN.R-project.org/doc/Rnews/},
}
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ronaldo Reis-Jr.
Sent: Monday, October 24, 2005 3:56 PM
To: R-Help
Subject: [R] lme and lmer syntax
Hi,
I have this:
lme(y~x1+x2,random=~1|x1/x2)
How to make this random effect using lmer?
I try this:
lmer(y~x1+x2+(1|x1/x2)
But it dont work.
Any idea?
Thanks
Ronaldo
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