Hi, I'm trying to write a function that will divide a given range of numbers into 3 sets using sample(), without repetition. Currently I'm trying this approach:
r <- 1:10 s1 <- sample(r,size=3) Next, I want to remove the selected elements from r and sample() from the remainder. r <- r[ -(r=s1) ] s2 <- sample(r,size=3) When I go to remove the elements contained in s2 from r I get an error: r <- r[ -(r=s2) ] Error: subscript out of bounds I'm not sure why this is happening. I tried replacing the '=' with '==' but I get another error Warning message: longer object length is not a multiple of shorter object length in: r == s1 Essentially what I need is to get the indices into r of the elements of s1 & s2. I have looked at which but I cant seem to work out how I can get the indices into r of all the elements of, say, s1. Does anybody have any suggestions? (Of course if there is a more elegant way of doing this whole thing I would appreciate any pointers) Thanks, ------------------------------------------------------------------- Rajarshi Guha <[EMAIL PROTECTED]> <http://jijo.cjb.net> GPG Fingerprint: 0CCA 8EE2 2EEB 25E2 AB04 06F7 1BB9 E634 9B87 56EE ------------------------------------------------------------------- A committee is a life form with six or more legs and no brain. -- Lazarus Long, "Time Enough For Love" ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help