Hello all: I'm sorry to take up bandwidth with easy questions, but as an R beginner, I continue to be surprised by factors. If someone can shed some light for me, I'd be grateful:
> d Total z02801 z02802 z02804 z02806 z02807 z02808 z02809 z02812 z02813 54813 29 51 169 2368 103 76 1328 112 501 507 Levels: 0 10 1001 1004 1008 1016 1027 1028 103 1031 10318 1043 1045 ... Na > sort(d) z02807 z02812 z02809 z02804 z02806 z02801 z02813 z02802 Total z02808 103 112 1328 169 2368 29 501 51 54813 76 507 Levels: 0 10 1001 1004 1008 1016 1027 1028 103 1031 10318 1043 1045 ... Na Apparently this factor is sorted in alphabetic order, not numeric order. I find no parameter of sort() that controls for this. And yet: > mode(d) [1] "numeric" > length(d) [1] 10 I would have thought that because d is a numeric list of ten values, I'd get them sorted in numeric order. Can someone help me understand why this is expected behavior, and also what I should do in order to see the numerically sorted list of values I really want? Many thanks, -tom -- ------------------------ tomfool at as220 dot org http://sgouros.com http://whatcheer.net ______________________________________________ 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.
