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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

Dear all, thanks very much for your quick and helpful response! It tought me again the old lesson that one should look for simple solutions first, before looking for more complicated ones... Thanks Christian

Dear all, my apologies if I am posting a silly question - but I couldn't find any helpful information on this elswhere. In the R FAQ, version 1.8-1, there is a section "5.2 How can add-on...

Dear list members Here is a strange problem that I have had for a long time, without finding out how to solve it. Whenever I use fix() on a data.frame that contains Dates, these are converted to numerics. As...

Dear list members Here is a strange problem that I have had for a long time, without finding out how to solve it. Whenever I use fix() on a data.frame that contains Dates, these are converted to numerics. As...

Dear all: I am trying to build a data.frame from some vectors and some matrices and seem to be unable to find out how to do this without converting everything to factors. I can prevent conversion of the vectors...

Dear list members I have been using RWinEdt for an extended time and on different machines (all under Windows XP). There is a strange problem that comes up sometimes on one of them, always on another and never on a...

Excellent - now it works. Thank you, Christian! (I still seem to be unable to replicate the results as reported in the paper, but that is unrelated to R-help. Thomas, do you have any idea what I may have entered...

Dear Wolfgang Viechtbauer and list members: I have discovered your "MiMa" function for fitting meta-analytic mixed-effects models through an earlier discussion on this list. I think it is extremely useful and fills an important gap. In particular, since...

Dear Wolfgang Thanks for your prompt and clear response concerning the R^2. You write: > Note that the mima function does nothing else but fit the model with weighted least squares using those weights. So, you could actually use "lm...

Thanks for your reply. I have tried the reproducible example you have provided (thanks!) in 3 different versions of R, and get what you get in R version 2.5.1, but in 2.3.1 (which I normally use...

Thanks. So there is no solution, other than avoiding fix() and edit()? What would then be the recommended way to make visible and inspect large data.frames (i.e. that are to big for sensibly displaying on the console)? Would...

I have come across the previous communication on this list in September (copied below) because I had received the same error message. I understand from Brian Ripley's reply that anova should not be used with glmmPQL because it is...

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...

Dear Thomas Lumley, and R-help list members, I have read your article "Network meta-analysis for indirect treatment comparisons" (Statist Med, 2002) with great interest. I found it very helpful that you included the R code to replicate your...