Rolf Turner wrote:
There is no bug.
Both of your examples work fine for me.
Ditto
You may have a corrupt
version of ``iris'' somewhere in your search path before ``datasets''.
What does find("iris") tell you? What does names("iris") tell you?
Could also be something interfering with the model.frame/model.matrix
bits. The error message suggests that something did a substitute of ".",
but I can't offhand see a parse(text=x) construct in any of the usual
suspects. A traceback() could be informative.
--
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
~~~~~~~~~~ - (p.dalga...@biostat.ku.dk) FAX: (+45) 35327907
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