On 31-May-10 14:49:43, Aarne Hovi wrote: > Hi, > > I'm trying to create a histogram with R. The problem is that the > frequency is high for a couple of x-axis categories (e.g. 1500) > and low for most of the x-axis categories (e.g. 50) > http://r.789695.n4.nabble.com/file/n2237476/LK3_hist.jpg . > When I create the histogram, it is not very informative, because > only the high frequencies can be seen clearly. Is there any way I > could cut the y-axis from the middle so that the y-axis values > ranged for example from 0 to 300, and then again from 900 to 1500?
There may be specific rpovision for this in one of the extra graphics packages, but using plain hist() the only approach I can think of is on the folllowing lines. First create the histogram and name it: H <- hist(whatever) Then fake the high counts: ix <- H$counts > 400 ## which counts exceed 400 (say) H$counts[ix] <- H$counts[ix] - 500 ## counts > 900 -> 400+ Now plot the histogram without y-axis annotations, and with ylim=c(0,1100); then add annotations (0,100,200,300,900,1000,1100,...). Finally (perhaps) plot filled white boxes over the histogram bars with height range 330-370 (say) so that the break is obvious. Just first thoughts! Ted. -------------------------------------------------------------------- E-Mail: (Ted Harding) <ted.hard...@manchester.ac.uk> Fax-to-email: +44 (0)870 094 0861 Date: 31-May-10 Time: 16:40:29 ------------------------------ XFMail ------------------------------ ______________________________________________ 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.