or, it could mean you need to recenter your time variable.
-----Original Message-----
From: [EMAIL PROTECTED] on behalf of Marc Bernard
Sent: Fri 11/3/2006 7:24 AM
To: r-help@stat.math.ethz.ch
Subject: [R] correaltion equal 1
Dear All,
I wonder if this is a technical or an interpretation problem. I fitted an lme
model including a random intercept and a random slope. The estimated
correlation, from the lme, between the random intercept and the random slope
is equal to 1. Does it mean that I should suppress one of the random effect
from the model?
Thanks a lot,
Bernard
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