[R] Setting contrasts

I have been having trouble understanding the difference between "contrasts(Group) <- contr.sum" and options(contrasts = c("contr.sum","contr.poly"). They both seem to say that they have done what I want, but only the latter works. The reason why the question arises is tha,t using Fox's Anova,

[R] Extracting elements of model output

I am having difficulty extracting specific results from the model object. The following code shows where I am stuck. I want to run resamplings of a data set. For each I want to extract a particular F for the contrasts. If I run a very simple model (e.g. model1 <- aov(time~group) ) I can get the

Re: [R] Stat textbook recommendation

e are likely to be dead--although you can often find them via Google. Dave Howell -- David C. Howell Prof. Emeritus, Univ. of Vermont PO Box 770059 627 Meadowbrook Circle Steamboat Springs, CO 80477 __ R-help@r-project.org mailing list https://stat.et

[R] The use of F for False and T for True

ile.choose(), header = F) I'm using a Windows machine with version 2.8.0, but I'm sure that this is not a machine specific problem. Thanks, Dave Howell -- David C. Howell PO Box 770059 627 Meadowbrook Circle Steamboat Springs, CO 80477 __

[R] Problems with scan

ress the echoing of lines? I would like to omit the lines above that begin with ">". I cannot find "echo" using help.search and can't think of another name to search under. Thanks, Dave Howell -- David C. Howell PO Box 770059 627 Meadowbrook Circle Steamboat Springs,

Re: [R] problem with anova() and syntax in lmer

h (2-1) * > (2-1) = 1 denominator DF. > And the same for temp... > > > > > > > Gilles San Martin y Gomez > > Biodiversity Research Centre > Ecology & Biogeography Unit > University of Louvain-La-Neuve (UCL) >