roger koenker <[EMAIL PROTECTED]> writes: > I was experimenting yesterday with a binomial make.link option > for estimating student t binary response models, tentatively > called gossit, and I noticed eventually that the R qt function doesn't > like df < 1. Vaguely recalling that Splus didn't seem to mind such > weirdness, I checked on our soon to be defunct Splus6.2 and > sure enough, it produced plausible answers instead of R's NA's. > Of course, I have no way of judging the quality of these answers, > but I'm curious about whether someone has already looked into > this can of worms.
Well the help page has: For 'qt' only values of at least one are currently supported. and someone must have written that... R does have pt for df < 1, so a temporary fix using uniroot() seems doable. -- O__ ---- Peter Dalgaard Øster Farimagsgade 5, Entr.B c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
