Hi, vec1<- c(2465, 2255, 2085, 1545, 1335, 1210, 920, 210, 210, 505, 1045) vec1[order(vec1)] #[1] 210 210 505 920 1045 1210 1335 1545 2085 2255 2465 order(vec1) #[1] 8 9 10 7 11 6 5 4 3 2 1 sort(vec1,index.return=TRUE) #$x #[1] 210 210 505 920 1045 1210 1335 1545 2085 2255 2465
#$ix # [1] 8 9 10 7 11 6 5 4 3 2 1 A.K. ----- Original Message ----- From: Julio Sergio <julioser...@gmail.com> To: r-h...@stat.math.ethz.ch Cc: Sent: Tuesday, April 16, 2013 1:51 PM Subject: [R] I don't understand the 'order' function I thought I've understood the 'order' function, using simple examples like: order(c(5,4,-2)) [1] 3 2 1 However, I arrived to the following example: order(c(2465, 2255, 2085, 1545, 1335, 1210, 920, 210, 210, 505, 1045)) [1] 8 9 10 7 11 6 5 4 3 2 1 and I was completely perplexed! Shouldn't the output vector be 11 10 9 8 7 6 4 1 2 3 5 ? Do I have a damaged version of R? I became still more astonished when I used the sort function and got the right answer: sort(c(2465, 2255, 2085, 1545, 1335, 1210, 920, 210, 210, 505, 1045)) [1] 210 210 505 920 1045 1210 1335 1545 2085 2255 2465 since 'sort' documentation claims to be using 'order' to establish the right order. Please help me to understand all this! Thanks, -Sergio. ______________________________________________ R-help@r-project.org 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. ______________________________________________ R-help@r-project.org 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.
