I can guess you meant `sphericity', but you didn't tell us of what. Note that the `analysis of variance' is an algorithm to partition sums of squares, and that makes no such assumption.
I suspect that you could do what you want in lme (package nlme), if you were able to specify it unambiguously. On Sat, 15 Feb 2003, Corey Moffet wrote: > Does any one know of a function/package in R that will test the assumption of > spericity in a split-plot analysis of variance? How are people dealing with > this issue in R? -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ [EMAIL PROTECTED] mailing list http://www.stat.math.ethz.ch/mailman/listinfo/r-help
