Message-ID: <Pine.LNX.4.33.0208161102400.23628-100000@fata.unam.mx>
Date: 2002-08-16T16:12:26Z
From: Ulises M. Alvarez
Subject: [nlme] BLUPs for a new subject in a fitted lme model?
In-Reply-To: <ajipba$6cb$1@yorikke.arb-phys.uni-dortmund.de>
On Fri, 16 Aug 2002, Wilhelm B. Kloke wrote:
> I am seeking for a method to calculate, given a fitted lme model
> and some data for a subject, the random effects predictors
> for this subject. I can only find predictors for the subjects used in
> creating the fit. Of course I could just add the subject and redo the fit.
> But I want to avoid just this refitting.
>
> Thanks for help
> wbk
Once you've a lme model, you don't need to stimate new random effects for
new subjects.
As stated by Pinheiro & Bates:
"Fixed affects are parameters associated with an entire population, or
with repeatable levels of experimental factors.
Random effects are instead associated with experimental units drawn at
random from a population."
Maybe you'd like to see Pinheiro & Bates' book for further details.
--
Ulises M. Alvarez
LAB. DE CHOQUES DEBILES
FISICA APLICADA Y TECNOLOGIA AVANZADA
UNAM
umalvarez at fata.unam.mx
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