Williams, Robin <robin.williams <at> metoffice.gov.uk> writes: > > Hi all, > I am very confused with class. > I am looking at some weather data which I want to use as explanatory > variables in an lm. R has treated these variables as factors (i.e. with > different levels), whereas I want them treated as discretely measured > continuous variables.
The short answer to your problem can be found in the documentation for factor, particularly in the "Warning" section. ?factor Mark ______________________________________________ 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.