dear Dr. Kubovy, I am sorry. but the Variance table is not exactly what I want. I want the partitioned VARIANCE for between and within the groups. the anova ()-table just gives me the SumSq and the mean Sq... I know how to run t.test and ANOVA! in the nlme-package there is the VarCorr function, which extracts the between and within variances, but only for nested ANOVAs. so my question was, if there is a function like that for not-nested ANOVAS ?
sorry. maybe I should reformulate the question. cheers , gregor Am Sep 27, 2008 um 7:19 AM schrieb Michael Kubovy: > Than all you need is to run a t-test, no? More generally (from ?lm): > > ctl <- c(4.17,5.58,5.18,6.11,4.50,4.61,5.17,4.53,5.33,5.14) > trt <- c(4.81,4.17,4.41,3.59,5.87,3.83,6.03,4.89,4.32,4.69) > group <- gl(2,10,20, labels=c("Ctl","Trt")) > weight <- c(ctl, trt) > anova(lm.D9 <- lm(weight ~ group)) > This gives you what you need: > Analysis of Variance Table > > Response: weight > Df Sum Sq Mean Sq F value Pr(>F) > group 1 0.69 0.69 1.42 0.25 > Residuals 18 8.73 0.48 > I am concerned that you have not spent enough time either studying > stats or reading up on R. There are many good introductions to > stats using R. > _____________________________ > Professor Michael Kubovy > University of Virginia > Department of Psychology > USPS: P.O.Box 400400 Charlottesville, VA 22904-4400 > Parcels: Room 102 Gilmer Hall > McCormick Road Charlottesville, VA 22903 > Office: B011 +1-434-982-4729 > Lab: B019 +1-434-982-4751 > Fax: +1-434-982-4766 > WWW: http://www.people.virginia.edu/~mk9y/ > Gregor Rolshausen PhD Student Department of Evolutionary Ecology University of Freiburg im Breisgau; Hauptstrasse 1, 79108 Freiburg phone - +49.761.2559 email - [EMAIL PROTECTED] [[alternative HTML version deleted]] ______________________________________________ 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.