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...s to be different from (1|A) + (1|B %in% A), isn't that what %in% means? Thanks a lot for your help, Claus Wilke -- Claus Wilke Section of Integrative Biology and Center for Computational Biology and Bioinformatics University of Texas at Austin 1 University Station C0930 Austin, TX 78712 cwilke at mail.utexas.edu 512 471 6028

...5.729 -0.931 Correlation of Fixed Effects: (Intr) Trtmn2 Treatment2 -0.580 Treatment3 -0.580 0.500 -- Claus Wilke Section of Integrative Biology and Center for Computational Biology and Bioinformatics University of Texas at Austin 1 University Station C0930 Austin, TX 78712 cwilke at mail.utexas.edu 512 471 6028

Hello, I used the function cor to calculate the pearson correlation coefficient between variables. However, the resulting values do not correspond to the outcome of my excel-calculations, for which I used the formula Cor(x,y)=Cov(x,y)/(SD(x)*SD(y)) So my question is: How does the function "cor" compute the pearson correlation coefficient? Thank you in advance, Ake Nauta

Colleagues I am working in a Linux OS with R 2.6.2. I need to execute a telnet session to another Linux machine from R, perform some operations, then return to the original computer. When I am in an R session, this is easy to accomplish by typing: system("telnet -l username machinename") I am then asked for my password; once that is entered, I am connected to the remote