Rajarshi - Do you want three sets, three disjoint sets, or sets of size three ? It's not clear what you are attempting to do.
- tom blackwell - u michigan medical school - ann arbor - On Mon, 17 Nov 2003, Rajarshi Guha wrote: > 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 > ------------------------------------------------------------------- ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
