selecting a subset of files to be processed
Hi Erin, It is not difficult to imagine doing it either in R or via the shell. If they are all in the same directory, I would tend towards R, just because you can easily set the seed and keep that information so you can reproduce your random selection. If the wd is in the directory with the files, from R just: set.seed(10) toprocess <- sample(list.files(), size = 45) Cheers, Josh
On Sat, Jul 28, 2012 at 10:49 AM, Erin Hodgess <erinm.hodgess at gmail.com> wrote:
Dear R People: I am using a Linux system in which I have about 3000 files. I would like to randomly select about 45 of those files to be processed in R. Could I make the selection in R or should I do it in Linux, please? This is with R-2.15.1. Thanks, erin -- Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: erinm.hodgess at gmail.com
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Joshua Wiley Ph.D. Student, Health Psychology Programmer Analyst II, Statistical Consulting Group University of California, Los Angeles https://joshuawiley.com/