Dear Federico, Might my.data[, 2] contain character data, which therefore would be sorted in this manner? For example:
> x <- sample(6:37, 1000, replace=TRUE) > table(x) x 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 29 30 35 29 41 33 27 21 38 36 34 35 31 29 27 26 28 22 21 34 32 33 31 34 23 32 35 39 31 40 35 29 > y <- as.character(x) > table(y) y 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 6 7 8 9 41 33 27 21 38 36 34 35 31 29 27 26 28 22 21 34 32 33 31 34 23 32 35 39 31 40 35 29 29 30 35 29 I hope this helps, John ----------------------------- John Fox, Professor McMaster University Hamilton, Ontario Canada L8S 4M4 Web: socserv.mcmaster.ca/jfox > -----Original Message----- > From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Federico > Calboli > Sent: February 12, 2016 10:13 AM > To: R Help <r-help@r-project.org> > Subject: [R] why is 9 after 10? > > Hi All, > > I have some data, one of the columns is a bunch of numbers from 6 to 41. > > table(my.data[,2]) > > returns > > 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 > 25 26 27 28 29 > 30 31 32 33 34 35 36 37 > 1761 1782 1897 1749 1907 1797 1734 1810 1913 1988 1914 1822 1951 1973 1951 > 1947 2067 1967 1812 2119 1999 2086 2133 2081 2165 2365 2330 2340 > 38 39 40 41 6 7 8 9 > 2681 2905 3399 3941 1648 1690 1727 1668 > > whereas the reasonable expectation is that the numbers from 6 to 9 would > come before 10 to 41. > > How do I sort this incredibly silly behaviour so that my table follows a > reasonable expectation that 9 comes before 10 (and so on and so forth)? > > BW > > F > > -- > Federico Calboli > Ecological Genetics Research Unit > Department of Biosciences > PO Box 65 (Biocenter 3, Viikinkaari 1) > FIN-00014 University of Helsinki > Finland > > federico.calb...@helsinki.fi > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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 -- To UNSUBSCRIBE and more, see 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.
