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Hi, I'm new to R, so apologies in advance for the triviality of this question, but I was wondering if anyone could tell me why this function doesn't return the expected output, i.e. a matrix containing two columns from a large data frame called 'finalTable'? Oddly, the statement between the curly brackets works if run with 'thisCol' and 'thatCol' already defined. Any help would be much appreciated. Here's what 'finalTable' looks like, if it helps:- Many thanks, Adam -- View this message in context: http://r....

I have many files (0.4.dat, 0.5.dat, ...) of which I would like to calculate mean value and variance and save the output in a new file where each line shouldlook like: "0.4 mean(0.4.dat) var(0.4.dat)" and so on. Right now I got a a simple script that makes me unhappy: 1. I run it by "R --no-save < script.r > out.dat" unfortunately out.dat has all the original commands in