Date:         Tue, 12 Aug 2003 16:49:43 -0400
Reply-To:     Ting Zhu <tzhu@ANDREW.CMU.EDU>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Ting Zhu <tzhu@ANDREW.CMU.EDU>
Organization: Carnegie Mellon, Pittsburgh, PA
Subject:      multivariate probit
Content-Type: TEXT/PLAIN; charset=US-ASCII

Thanks for the help.  But my question is about the multivariate model
instead of multinomial model.  In other words, there are multiple
dependent variables in my model and I have to use multivariate normal
distriubtion to get the MLE.  I used to use NLP to maximize the likelihood
function written by myself, but it is too slow...