Perhaps if you provide the SAS code we could translate into Stata.
On Mon, Feb 9, 2009 at 2:32 PM, SR Millis <[email protected]> wrote:
> In xtmixed, is it possible to model the covariance structure for the within-individual random errors (R matrix), ie, an xtmixed equivalent of the "repeated" statement in SAS?
>
> Of course, using "random" and "repeated" statements in SAS likely over-specifies the model--and non-convergence often occurs.
>
> Thanks,
> Scott
>
>
>
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> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
--
Raphael A. Fraser, MSc
Lecturer in Biostatistics
Tropical Medicine Research Institute
Faculty of Medical Sciences
University of the West Indies
Mona Campus
Kingston, JAMAICA
Tel: (876) 927-2471; 977-6151
Mobile: (876) 410-4699
Fax: (876) 927-2984
e-mail: [email protected]
*
* For searches and help try:
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* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
