[R] axis: forcing last label to print
Hello, I often use the axis command to add labels to axes with large numbers of consecutively numbered names: y<- barplot (x, log="x") axis(1, at = y, labels = c(1:12345)) Since there are more labels than will fit in the space, the command only prints selected labels. This is what I want, except that it never actually prints a label for the final item. Thus I end up with labels something like this: 1 16 123 1432 2134 3235 6578 11385 when I really want the last label displayed to be the final category number (12345): 1 16 123 1432 2134 3235 6578 12345 Short of manually choosing the labels, does anyone know a way to force the last category to be among those printed when axis selects labels? Thanks, Shawn Polson Delaware Biotechnology Institute University of Delaware -- View this message in context: http://www.nabble.com/axis%3A-forcing-last-label-to-print-tp25527633p25527633.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.
Re: [R] axis: forcing last label to print
On 09/20/2009 02:12 PM, Shawn Polson wrote: Hello, I often use the axis command to add labels to axes with large numbers of consecutively numbered names: y<- barplot (x, log="x") axis(1, at = y, labels = c(1:12345)) Since there are more labels than will fit in the space, the command only prints selected labels. This is what I want, except that it never actually prints a label for the final item. Thus I end up with labels something like this: 1 16 123 1432 2134 3235 6578 11385 when I really want the last label displayed to be the final category number (12345): 1 16 123 1432 2134 3235 6578 12345 Short of manually choosing the labels, does anyone know a way to force the last category to be among those printed when axis selects labels? Hi Shawn, You can get the first and last label with: axis(1,seq(1,12345,length.out=8) but you have to specify how many labels you want, and you will get non-integer labels unless the upper limit divides evenly. Jim __ 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.
Re: [R] axis: forcing last label to print
Thanks for the suggestion Jim, A good thought, but unfortunately this doesn't quite work either: -Since my example is log scale on that axis, the linearly spaced labels still become to numerous near the end forcing the last label not to print -Also, the labels don't print under the appropriate bars and since there are now fewer labels than bars using the "at" command doesn't work properly unless I specify a vector of locations which would essentially be manually placing the labels for each graph I have to make (which is what I was trying to get away from . . .) Thanks, Shawn Jim Lemon-2 wrote: > > On 09/20/2009 02:12 PM, Shawn Polson wrote: >> Hello, >> >> I often use the axis command to add labels to axes with large numbers of >> consecutively numbered names: >> >> y<- barplot (x, log="x") >> axis(1, at = y, labels = c(1:12345)) >> >> Since there are more labels than will fit in the space, the command only >> prints selected labels. This is what I want, except that it never >> actually >> prints a label for the final item. Thus I end up with labels something >> like >> this: >> >> 1 16 123 1432 2134 3235 6578 11385 >> >> when I really want the last label displayed to be the final category >> number >> (12345): >> >> 1 16 123 1432 2134 3235 6578 12345 >> >> Short of manually choosing the labels, does anyone know a way to force >> the >> last category to be among those printed when axis selects labels? >> >> > Hi Shawn, > You can get the first and last label with: > > axis(1,seq(1,12345,length.out=8) > > but you have to specify how many labels you want, and you will get > non-integer labels unless the upper limit divides evenly. > > Jim > > __ > 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. > > -- View this message in context: http://www.nabble.com/axis%3A-forcing-last-label-to-print-tp25527633p25530067.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.
