Dear Zelig ListServ Members, There seems to be a bug in Zelig's mlogit command when used under the latest version of R (2.4.0). I have re-installed Zelig, and I still have the same problem. I am including a copy of my attempt to run one of the examples you have included with the Zelig documentation, and the resulting error: + othsocok, + model = "mlogit", data = mexico) [I have removed some standard objects attached and masked output, but I can send them to you if you need them.] Error in a[[n + 1]] <- value : object is not subsettable There does not seem to be a problem with running the program under 2.3. Also, the mlogit.bayes function seems to run fine. z.out1 <- zelig(as.factor(vote88) ~ pristr + othcok + othsocok, + model = "mlogit.bayes", data = mexico) Calculating MLEs and large sample var-cov matrix. This may take a moment... I am running R under Windows XP, and am using the SciViews console. Thanks in advance for you attention to this matter. Sincerely, Milton Mayfield - Zelig Mailing List, served by Harvard-MIT Data Center Send messages: zelig(a)lists.gking.harvard.edu [un]subscribe Options: http://lists.gking.harvard.edu/?info=zelig Zelig program information: http://gking.harvard.edu/zelig/