like this: > x 0-100 100-250 250+ a 9 18 16 b 33 25 27 c 21 19 17 d 25 22 19 e 40 39 19 f 77 45 29 > x[sample(nrow(x), 3),] 0-100 100-250 250+ e 40 39 19 c 21 19 17 a 9 18 16 > x[sample(nrow(x), 3),] 0-100 100-250 250+ c 21 19 17 e 40 39 19 d 25 22 19 > x[sample(nrow(x), 3),] 0-100 100-250 250+ b 33 25 27 f 77 45 29 c 21 19 17 > x[sample(nrow(x), 3),] 0-100 100-250 250+ f 77 45 29 c 21 19 17 a 9 18 16
On Sat, Jul 26, 2008 at 5:12 PM, Raphael Saldanha <[EMAIL PROTECTED]> wrote: > Hi! > > I have a data.frame, like this one: > >> data > 0-100 100-250 250+ > a 9 18 16 > b 33 25 27 > c 21 19 17 > d 25 22 19 > e 40 39 19 > f 77 45 29 > > If I request a sample of 2, I have the following: > >> sample(data, 2) > 0-100 250+ > a 9 16 > b 33 27 > c 21 17 > d 25 19 > e 40 19 > f 77 29 > > How can I request a sample from the rows??? > > > -- > Raphael Saldanha > UFJF - Brazil > [EMAIL PROTECTED] > > > Woody Allen - "I don't want to achieve immortality through my work. I want > to achieve it through not dying." > > [[alternative HTML version deleted]] > > ______________________________________________ > [email protected] mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem you are trying to solve? ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
