[R] [nlme] BLUPs for a new subject in a fitted lme model?

[Ulises Mora Alvarez]

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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