Re: [R] multinomial logistic regression with equality constraints?

2007-02-06 Thread Walter Mebane
Roger, Error in if (logliklambda loglik) bvec - blambda : missing value where TRUE/FALSE needed In addition: Warning message: NaNs produced in: sqrt(sigma2GN) That message comes from the Newton algorithm (defined in source file multinomMLE.R). It would be better if we

Re: [R] multinomial logistic regression with equality constraints?

2007-02-03 Thread Walter Mebane
By default, with print.level=0 or greater, the multinomRob program prints the maximum likelihood estimates with conventional standard errors before going on to compute the robust estimates. Walter Mebane Jasjeet Singh Sekhon writes: Hi Roger, Yes, multinomRob can handle equality

Re: [R] multinomial logistic regression with equality constraints?

2007-02-03 Thread Walter Mebane
Roger, summary(multinomRob(list(y1 ~ x1 + x2,y2 ~ x1 + x2, y3 ~ 0),data=d, print.level=1)) Walter Mebane Roger Levy writes: Many thanks for pointing this out to me! I'm still a bit confused, however, as to how to use multinomRob. For example I tried to translate the following