[R] Newbie question: How to use tapply() on several vectors simultaneously

ng for something that gives me groupID V2V3 1 1 -0.5915639-0.6012890 2 2 -0.74048750.3733494 Any ideas? Thank you very much, Bertolt -- Bertolt Meyer Oberassistent Sozialpsychologie, Psychologisches Institut der Universität Zürich Binzmühlestr. 14, Box

[R] Help with shading a polygon below a segment of a curve (normal distribution)

m missing? Thank you very much, Bertolt -- Bertolt Meyer Oberassistent Sozialpsychologie, Psychologisches Institut der Universität Zürich Binzmühlestr. 14, Box 15 CH-8050 Zürich [EMAIL PROTECTED] tel: +41446357282 fax: +41446357279 mob: +41788966111 _

[R] Multilevel model with lme(): Weird degrees of freedom (group level df > # of groups)

could explain this to me... What am I missing? Regards, Bertolt -- Dr. Bertolt Meyer Senior research and teaching associate Social Psychology, Institute of Psychology, University of Zurich Binzmuehlestrasse 14, Box 15 CH-8050 Zurich Switzerland bme...@sozpsy.uzh.ch tel: +41446

[R] vector indexing problem in multilevel data: assigning a specific value to all group members

34) leaderAttribute <- c(NA,NA,NA,NA,NA,NA,NA,NA,NA) df <- cbind(personId, groupId, groupLeader, someAttribute, leaderAttribute) df <- as.data.frame(df) df rm(personId, groupId, groupLeader, someAttribute, leaderAttribute, df) -- Dr. Bertolt Meyer Senior research and teachin

[R] lmer() causes segfault

ry not mapped' and a lengthy traceback. I can reproduce this error. It also occurs when I don't load nlme before lme4. Can someone tell me what I am doing wrong? Any help is greatly appreciated. With best regards, Bertolt -- Dr. Bertolt Meyer Senior research and teaching associate

Re: [R] lmer() causes segfault

Ben Bolker gmail.com> writes: Bertolt Meyer sozpsy.uzh.ch> writes: Hello lmer() - users, A call to the lmer() function causes my installation of R (2.11.1 on Mac OS X 10.5.8) to crash and I am trying to figure out the problem. [snip snip] detach("package:nlme") lib

Re: [R] lmer() causes segfault

time be nested within subject. Just saying... This discussion may be better continued on the R-sig-mixed list, so I've cc-ed to that group as well. HTH, Dennis On Wed, Aug 25, 2010 at 1:27 AM, Bertolt Meyer wrote: Ben Bolker gmail.com> writes: Bertolt Meyer sozpsy.uzh

[R] how to read the "Sum Sq" - column from summary.aov()

n a variable for later use? Like this: >some.magic.command() [1] 0.215 92.523 Thank you, Bertolt -- Dr. Bertolt Meyer Senior research and teaching associate Social Psychology, Institute of Psychology, University of Zurich Binzmuehlestrasse 14, Box 15 CH-8050 Zurich Switzerland bme...@sozpsy.

Re: [R] how to read the "Sum Sq" - column from summary.aov()

Dear Peter, thank you so much for the quick and helpful reply - it was exactly what I was looking for. Regards, Bertolt Am 03.02.2011 um 13:49 schrieb Peter Ehlers: > On 2011-02-03 04:30, Bertolt Meyer wrote: >> Dear R-Users, >> >> I have a trivial problem, but extensiv

[R] marginality principle / selecting the right type of SS for an interaction hypothesis

s, the SSs of all factors plus the RSS do not sum up to the total SS of the model. But doesn't that lead to a situation where the standard way of calculating eta-square for a factor by dividing its SS by the total SS cannot be applied? Regards, Bertolt -- Bertolt Meyer Senior Assistant Psycho