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st: RECALL Re: AW: prediction after fitting a multi level model with xtmixed


From   "Megan Andrew" <mandrew@ssc.wisc.edu>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RECALL Re: AW: prediction after fitting a multi level model with xtmixed
Date   Wed, 6 May 2009 15:13:18 -0500

Please disregard the previou message.
----- Original Message ----- From: "Megan Andrew" <mandrew@ssc.wisc.edu>
To: <statalist@hsphsun2.harvard.edu>
Sent: Wednesday, May 06, 2009 2:53 PM
Subject: st: Re: AW: prediction after fitting a multi level model with xtmixed


Okay, I'll stop by tomorrow afternoon then with the money I owe you guys. Hopefully I will know by Friday whether I will have more coding for you.

Megan

----- Original Message ----- From: "Martin Weiss" <martin.weiss1@gmx.de>
To: <statalist@hsphsun2.harvard.edu>
Sent: Wednesday, May 06, 2009 2:49 PM
Subject: st: AW: prediction after fitting a multi level model with xtmixed


<>

On -xtmixed- you always want to take into account
http://www.stata.com/meeting/fnasug08/gutierrez.pdf

Seems to me I can get a prediction for the weight of those pigs in -h
xtmixed- after 2 and a half weeks, although measurements were taken only
weekly...

*************
webuse pig, clear
xtmixed weight week || id:
adjust week=2.5, xb
*************



HTH
Martin

-----Ursprüngliche Nachricht-----
Von: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von W.O.Johnson
Gesendet: Mittwoch, 6. Mai 2009 19:31
An: statalist@hsphsun2.harvard.edu
Betreff: st: prediction after fitting a multi level model with xtmixed

I have fitted a random effect and coefficient multi-level model to some
infant growth (weight) data, using xtmixed. I have used the model to fit
growth trajectories between 0-1yr. I want to predict each individuals
weights at ages where they don't have a measurement (i.e. what is each
individuals weight at 0,3,6,9,12 months, understanding that most individuals
will not have a measurement at these ages). If anyone can help I will be
very grateful.

Will



_________________________

William. O. Johnson
PhD Candidate
Centre for Human Development & Ageing
Department of Human Sciences
Loughborough University
Loughborough
Leicestershire
LE11 3TU

t: +44 (0) 1509 228159
e: W.O.Johnson@lboro.ac.uk




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