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| From | Steven Samuels <sjsamuels@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: need help with gllamm ordered probit models |
| Date | Sun, 29 May 2011 14:10:49 -0400 |
Lisa- All of the examples in the GLLAMM manual of link(oprobit) use family(binomial). Steve sjsamuels@gmail.com On May 29, 2011, at 1:52 PM, Lisa Marie Yarnell wrote: Hello! I have run ordered probit models in the past using svy: oprobit. Those have worked great for me. But now, I am trying to run ordered probit models using gllamm so that I can nest persons within schools (scid), and I am stumped. Even in a very basic model (below), I receive error messages. Do I need to specify the number of random effects, which I have seen on help pages indicated as "eqs(var1 var2 var3)" in the code? I would like for someone to help me understand what I'm doing wrong in my modeling, so I can get these analyses to run. Thank you! Lisa . gllamm overwt_notdep boy w1_yrs, i(scid) family(gaussian) link(oprobit) eform pweight(wt) could not calculate numerical derivatives flat or discontinuous region encountered (error occurred in ML computation) (use trace option and check correctness of initial model) * * 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/ * * 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/