if statement
My solutions are usually too baroque, but does this do what you want? x <- rnorm(100) quants <- quantile(x, c(.3, .7)) Case <- rep(2, length(x)) # 2 lies in the middle of the distribution Case[x <= quants[1]] <- 0 Case[x >= quants[2]] <- 1 Case Cheers, Simon.
On Mon, 2007-06-11 at 15:14 -0700, Jiong Zhang, PhD wrote:
Hi all, I have a rather naive question. I have the height of 100 individuals in a table and I want to assign the tallest 30% as Case=1 and the bottom 30% as Case=0. How do I do that? thanks. jiong The email message (and any attachments) is for the sole use of the intended recipient(s) and may contain confidential information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message (and any attachments). Thank You. [[alternative HTML version deleted]]
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Simon Blomberg, BSc (Hons), PhD, MAppStat. Lecturer and Consultant Statistician Faculty of Biological and Chemical Sciences The University of Queensland St. Lucia Queensland 4072 Australia Room 320, Goddard Building (8) T: +61 7 3365 2506 email: S.Blomberg1_at_uq.edu.au The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data. - John Tukey.