I am trying to do Tukey HSD comparisons on a repeated measures expt. I found the following example on r-help and quoted approvingly elsewhere. It is broken. Can anyone please tell me how to get it to work?
I am using R 2.4.1. > require(MASS) ## for oats data set > require(nlme) ## for lme() > require(multcomp) ## for multiple comparison stuff > Aov.mod <- aov(Y ~ N + V + Error(B/V), data = oats) > Lme.mod <- lme(Y ~ N + V, random = ~1 | B/V, data = oats) > summary(Aov.mod) > anova(Lme.mod) > summary(Lme.mod) > summary(glht(Lme.mod, linfct=mcp(V="Tukey"))) Error in eval(expr, envir, enclos) : object "Y" not found Error in factor_contrasts(model) : no 'model.matrix' method for 'model' found! It all went ok until the last line, where the actual Tukey multiple comparisons was requested. Thanks very much for any help! Bill ______________________________________________ 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.
