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st: longitudinal ordinal regression


From   Shubhabrata Mukherjee <joy_stat@yahoo.com>
To   stata forum <statalist@hsphsun2.harvard.edu>
Subject   st: longitudinal ordinal regression
Date   Tue, 2 Jun 2009 14:30:44 -0700 (PDT)

Hi,

    I-emailed statalist about a month back regarding longitudinal ordinal regression in STATA (as I couldn't find anything such as `xtologit').

     A few people recommended that I should use GLLAMM or ologit (with `cluster id' option). But there is no option to specify the type of covariance structure (unstructured, ar1 etc.) on either of them if I am not wrong. I think the cluster(id) option for ologit (or i(id) for GLLAMM) are just nesting the observations by their respective ids.

    I was wondering if anyone can point out some other models which could take care of this problem (specifying covariance structure in a longitudinal OLR)?

     Thanks,

        Joey



      

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