Peter Ehlers <ehlers <at> ucalgary.ca> writes:
> > It might be a good idea not to use an outdated version of R. > I don't see your "problem" in R 2.12.0. > > Peter Ehlers > > On 2010-12-01 05:44, Jean.Coursol <at> math.u-psud.fr wrote: > > Just for fun > > > > This small program gives negative Sum of Sq in anova (with R versions > > 2.9.2 and 2.10.0) (linux 32 kernel 2.6.29.6-smp slackware 13.0) : > > These are essentially just round-off error in a problem with zero noise: there is absolutely no practical difference between 2e-16 and 2e16. If you really need to do something with these values that will break if they are negative, see ?zapsmall ... ______________________________________________ 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.