[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, it is

[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

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.ethz.ch

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

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-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read

[R] Problems with scan

to search under. Thanks, Dave Howell -- David C. Howell PO Box 770059 627 Meadowbrook Circle Steamboat Springs, CO 80477 __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R

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

] __ 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. -- David C. Howell PO Box