[R] anova planned comparisons/contrasts

[Dieter Menne]

Tyler Smith <tyler.smith <at> mail.mcgill.ca> writes:

> I'm trying to figure out how anova works in R by translating the
> examples in Sokal And Rohlf's (1995 3rd edition) Biometry. I've hit a
> snag with planned comparisons, their box 9.4 and section 9.6. It's a
> basic anova design:
> 

.... how to do contrast....

It's easier to use function estimable in package gmodels, or glht in package
multcomp.

Dieter