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Dear R-users I'm considering a repeated measures experiment where two within-subject factors A (2 levels) and B (3 levels) have been measured for each of 14 subjects, S. I wish to test the effect of factor A. I know that a variance component model with random effects S, S:A, S:B and S:A:B can be fitted using aov: aov( y ~ A*B + Error(S/(A*B)) ) If there is no significant interaction, the

Hello - I am fairly new to R, (i.e., ability to create functions/write programs insignificant) and was wondering if there might be a convenient way to model the following: I want to fit a gaussian glm to grouped data, while allowing for unequal variances in each of the groups. More specifically, my data set looks something like this: ---------------- data group 1 76 1 2 82 1 3

Dear R Users, Is it possible to make file names dependent on a changing variable? For instance. I generate random numbers in a loop and at each iteration I want data to write to file (I do not want to write everything in one file using 'append'): for (i in 1:50){ x<-matrix(runif(100, min=0,max=1),nrow=5,ncol=20) Write(t(x),file="Data_i.txt",ncolumns=5,sep="\t") }

Hi list, I want to write a general function so that it would take an lm object, extract its data element, then use the data at another R function (eg, glm). I searched R-help list, and found this would do the trick of the first part: a.lm$call$data this would return a name object but could not be recognized as a data.frameby glm. I also tried call(as.character(a.lm$call$data)) or

Hi, I am using R 2.2.0 on Mac OS X 10.3.9. But I test the issue also with R 2.2.1 on OS X 10.4 (Tiger) I have a question regarding the functioning of the history from the command line. When I press the 'up-arrow' I call back the last command (everything ok), let's say that I go back until the level n-5, but when I get down to return to the empty line, I cannot reach the empty

Hi there, I am trying to install from the source R-2.4.0 on my mac (osx 10.4.8 G5 DP) The error imply Tcl/Tk. I install it by all the way I know: darwinport, the Tcl/Tk package from the dmg available from CRAN but without success. The PATH is correct. tclConfig.sh is localised in /opt/local/lib and have those permission: -rw-r--r-- 2 root admin 7K Oct 9 09:49 tclConfig.sh Here is