[R] repeated measures anova

2007-03-22 Thread kaloytyn
Hello, is there a function for repeated measures anova? Have searched for some time and not found. Thank you very much for an answer. Regards, Katja Löytynoja __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE

Re: [R] repeated measures anova

2007-03-22 Thread Ulrich Flenker
On Thu, 22 Mar 2007 [EMAIL PROTECTED] wrote: Hello, is there a function for repeated measures anova? Have searched for some time and not found. Thank you very much for an answer. Regards, Katja Löytynoja Katja, this can be done by adding an Error() term. Section 6.10 (Use Error() for

Re: [R] repeated measures ANOVA

2006-03-02 Thread Christian Gold
A big thank you to all those of you who helped me with this problem. I really appreciated your advice! Cheers, Christian -- Dr. Christian Gold, PhD http://www.hisf.no/~chrisgol __ R-help@stat.math.ethz.ch mailing list

Re: [R] repeated measures ANOVA

2006-03-02 Thread Peter Dalgaard
Christian Gold [EMAIL PROTECTED] writes: A big thank you to all those of you who helped me with this problem. I really appreciated your advice! I don't think anyone pointed you towards the anova.mlm features; you might find them quite close to what SPSS does. For now, the easiest way to learn

Re: [R] repeated measures ANOVA

2006-02-28 Thread John Vokey
Christian, You need, first to factor() your factors in the data frame P.PA, and then denote the error-terms in aov correctly, as follows: group - rep(rep(1:2, c(5,5)), 3) time - rep(1:3, rep(10,3)) subject - rep(1:10, 3) p.pa - c(92, 44, 49, 52, 41, 34, 32, 65, 47, 58, 94, 82, 48,

Re: [R] repeated measures ANOVA

2006-02-28 Thread Gabor Grothendieck
Or use gl which directly forms a factor: group - gl(2, 5, 30) time - gl(3, 10) subject - gl(10, 1, 30) On 2/28/06, John Vokey [EMAIL PROTECTED] wrote: Christian, You need, first to factor() your factors in the data frame P.PA, and then denote the error-terms in aov correctly, as follows:

Re: [R] repeated measures ANOVA

2006-02-28 Thread John Maindonald
] repeated measures ANOVA Dear list members: I have the following data: group - rep(rep(1:2, c(5,5)), 3) time - rep(1:3, rep(10,3)) subject - rep(1:10, 3) p.pa - c(92, 44, 49, 52, 41, 34, 32, 65, 47, 58, 94, 82, 48, 60, 47, 46, 41, 73, 60, 69, 95, 53, 44, 66, 62, 46, 53, 73, 84, 79) P.PA

Re: [R] repeated measures ANOVA

2006-02-28 Thread John Maindonald
There was a mistake in my earlier note, that I should correct: (Or you can estimate the interaction, and no degrees of freedom are left for either the time or time:group random effect). All you can talk ^^^ about is the average and the difference of the

[R] repeated measures ANOVA

2006-02-27 Thread Christian Gold
Dear list members: I have the following data: group - rep(rep(1:2, c(5,5)), 3) time - rep(1:3, rep(10,3)) subject - rep(1:10, 3) p.pa - c(92, 44, 49, 52, 41, 34, 32, 65, 47, 58, 94, 82, 48, 60, 47, 46, 41, 73, 60, 69, 95, 53, 44, 66, 62, 46, 53, 73, 84, 79) P.PA - data.frame(subject, group, time,

Re: [R] repeated measures ANOVA

2006-02-27 Thread Ioannis Dimakos
Christian, One thing that may help with the data you provide is to make sure that group, time, and subject are indeed factors. group - factor(group) time - factor(time) subject - factor(subject) Running your analyses in both SPSS 13.0 and R.2.2.1 (the R sessions were ran in win xp and

Re: [R] Repeated measures ANOVA

2004-05-20 Thread Jason Turner
On Wed, May 19, 2004 at 11:11:46PM -0600, GIDEON WASSERBERG wrote: Dear friends I am not sure that I am conducting this analysis correctly. I would really appreciate if someone can verify what I've done. I conducted repeated measures ANOVA for some bugs data. These bugs were measured

[R] Repeated measures ANOVA

2004-05-19 Thread GIDEON WASSERBERG
Dear friends I am not sure that I am conducting this analysis correctly. I would really appreciate if someone can verify what I've done. I conducted repeated measures ANOVA for some bugs data. These bugs were measured repeatedly over 32 weeks at the same trapping plots. I want to test a

[R] repeated measures anova

2003-07-18 Thread wouter buytaert
Hello, what is the best way to do an ANOVA on two-factor experiments with repeated measures on one of the factors (e.g. time) in R, (with Greenhouse-Geisser Epsilon or Huynh-Feldt Epsilon calculation, if possible (as described in Ott and Longnecker, 2001. Statistical Methods and Data Analysis 5th

RE: [R] repeated measures anova

2003-07-18 Thread Pikounis, Bill
: Friday, July 18, 2003 6:34 AM To: [EMAIL PROTECTED] Subject: [R] repeated measures anova Hello, what is the best way to do an ANOVA on two-factor experiments with repeated measures on one of the factors (e.g. time) in R, (with Greenhouse-Geisser Epsilon or Huynh-Feldt Epsilon calculation

[R] repeated measures ANOVA (was (no subject))

2003-06-18 Thread Ramon Diaz
Dear Jessie, Why don't you try to use already written functions? Probably lme (in package nlme) would be what you need. lme comes with documentation, and there is a whole book devoted to it. Best, Ramón P.S. It is helpful if you use the Subject line, so that people now what your message is