[R] multiple comparison correction

dear list, i just found this post in the archive: On 23-Apr-05 Bill.Venables at csiro.au wrote: >:* -Original Message-*>:* From: r-help-bounces at stat.math.ethz.ch > *>:* [mail

[R] ANOVA subject-wise means

dear list, is there any function in R with which i can compute subject-wise means for a single factor level? for instance, i wanna have the mean for each subject for the first level of factor A, how can i get that? is there a straightforward way to solve this problem? kind regards jake

[R] ANOVA boxplots

Dear list, i have a quick and (hopefully) straightforward question regarding the plot-function after running aov. if i plot an equation like this: plot(dataSubjects~factorA, data=mydata) R gives me the boxplots for this particular factor A. my model, however contains several factors. is there

[R] boyplots nearly identical but still highly significant effect?

dear list, i am running a within-design ANOVA with 4 factors (4,4,2 and 2 levels each). the last one is a time factor comprising two different treatment timepoints. i fit a mixed-effects model using lme and apply the anova function to the outcome. according to this analysis, there are highly signi

[R] ANOVA - more sophisticated contrasts

dear list, i am using a multifactorial design with two treatments (factor A: drugs, three levels; factor B: theraphy, two levels) and a time factor (three levels, different timepoint). hypothetically, i measured the same subjects for all treatements and timepoints, so its a repeated measurement de