search for: oldmachin

Hello list, See verbose background below[1] I've just backed up my oldmachine that I have been using recently to an external drive with: sudo rsync -avuAESX /home /run/media/mylogin/Backup/home I have a newmachine that I want to back up to the same destination and merge to that backup because I'm about to send it away for repair - which is why I've been using th...

I need to calculate a large number of t statistics, and would like to do so via matrix operations. So far I have figured out a way to calculate the mean of each row of the matrix: d <- matrix(runif(100000,1,10), 1000, 10) # some test data s <- rep(1,ncol(d)) # a sum vector to use for matrix multiplication means <- (d%*%s)/ncol(d) This is at least 1 order of magnitude faster than