I have a big data frame and I have extracted a bit by doing: > y<-d[1:10,6] > y [1] Headings 0 -49 -98 -49 -41 -120 -155 -204 -169 92329 Levels: -0 -1 -10 -100 -1000 -10000 -10001 -10002 -10003 -10004 -10005 -10006 -10007 -10008 -10009 -1001 -10010 -10011 -10012 -10013 -10014 -10015 -10016 -10017 -10018 -10019 -1002 -10020 -10021 -10022 -10023 -10024 ... Headings >
What does the "levels" means? If I create a similar object as below - I don't get the levels message. > x <-c(3,4,5,6,3,2,1) > x [1] 3 4 5 6 3 2 1 -- View this message in context: http://n4.nabble.com/Data-frame-column-tp1579596p1579596.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
