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RE: st: Multilevel models (Multilevel mixed-effects model)


From   "Mustillo, Sarah A" <smustill@purdue.edu>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   RE: st: Multilevel models (Multilevel mixed-effects model)
Date   Tue, 27 Oct 2009 15:17:21 -0400

Raja - 

I'm not sure if there is a limit, but it's definitely possible to have more than 2 levels.  I just ran a 4-level model with xtmixed.  Search the internet - there are examples online.

Sarah

________________________________________
From: owner-statalist@hsphsun2.harvard.edu [owner-statalist@hsphsun2.harvard.edu] On Behalf Of Michael I. Lichter [mlichter@buffalo.edu]
Sent: Tuesday, October 27, 2009 3:02 PM
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: Multilevel models (Multilevel mixed-effects model)

Raja,

If you're thinking of the GLLAMM add-on (ssc describe gllamm; also
http://www.gllamm.org/), I believe that the number of levels is
arbitrary, depending only on computational resources and the properties
of the data.

Michael

Rajaram Subramanian Potty wrote:
> Dear all,
>
> This is a question about multilevel models. How many level can be
> defined in the current version of the STATA?. I generally use MLWIN
> for multilevel analysis. So, I just want to know is it possible to
> have more than two levels using STATA either version 10 or 11.  How
> many levels can be defined in the linear and non-linear models?.
>
> Thanks and regards,
>
>
> RAJA
> *
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>

--
Michael I. Lichter, Ph.D. <mlichter@buffalo.edu>
Research Assistant Professor & NRSA Fellow
UB Department of Family Medicine / Primary Care Research Institute
UB Clinical Center, 462 Grider Street, Buffalo, NY 14215
Office: CC 126 / Phone: 716-898-4751 / FAX: 716-898-3536

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