Rolf Turner <r.turner <at> auckland.ac.nz> writes: > > > I *do* see the same phenomenon that Bert describes and the code of > predict.lm() > *does* appear to contain a bug. There is a line: > [snip]
> > The operative difference between my set-up and Chuck's is that I am using > version 3.0.2 Patched. So I am very puzzled as to why Chuck does *not* get > an error thrown! > [rest deleted] The answer is that I made a rookie error. I ran example(predict.lm) before trying Bert's ECM. And then I did not bother to see what example(predict.lm) left lying around in R_GlobalEnv ... As you can probably guess, there was an object called 'w'. So predict.lm finds it and is.null(w) is FALSE. Mea culpa! ______________________________________________ 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.