Displaying 2 results from an estimated 2 matches for "oldmachin".
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oldmachine
2018 Feb 22
1
combining two back ups...
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...
2002 Aug 14
3
t-test via matrix operations
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