On 24 September 2011 23:58, felipnunes <felipnu...@gmail.com> wrote: > Hi guys, > > did you figure out a way to solve your problem, Igor? > > I'm still trying to understand what's happening to my estimations. My data > set is also big (>50,000) and I get the same error: > > Error in maxNRCompute(fn = logLikAttr, fnOrig = fn, gradOrig = grad, > hessOrig = hess, : > NA in the initial gradient > > I already tried many different specifications and the error is always the > same. I'm fitting the following model: > > tob7 <- censReg(transfers.cap ~ pt.pt + psdb.pt + pt.opp + pt.coa + psdb.coa > + pib.cap + transfers.cap.lag + pib.cap + ifdm + log(populat) + > mayor.vot.per + log(bol.fam.per+0.01) + factor(uf.name) + factor(year) - 1, > left=0, right=Inf, method="BHHH", nGHQ=8, iterlim=10000, data = pdata2)
Did you upgrade to version 0.5-7 (revision >= 1207) from R-Forge? /Arne -- Arne Henningsen http://www.arne-henningsen.name ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.