Thanks very much for that, most useful...
Ted.Harding-2 wrote: > > On 08-Jun-09 13:11:03, sedm1000 wrote: >> I've looked long and hard for this, but maybe I am missing something... >> >> There is a nice module that displays histograms reflected in the >> y axis, i.e. >> http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=136 >> >> but is it possible to reflect in the x-axis, so to have two datasets, >> one pointing up and one down rather than left and right? I haven't >> been able to find a way to plot this way using the guide, or elsewhere. >> >> Thanks... >> -- > > Try along the lines of: > > set.seed(54321) > X1 <- rnorm(500) > X2 <- rnorm(500) > H1 <- hist(X1,breaks=0.5*((-8):8),ylim=c(-100,100)) > H1 <- hist(X1,breaks=0.5*((-8):8),ylim=c(-100,100),col="red") > H2 <- hist(X2,breaks=0.5*((-8):8),plot=FALSE) > H3<-H2 ; H3$counts <- -H3$counts > plot(H3,add=TRUE,col="blue") > > NB: The choice of breaks and ylim was made after a preliminary > inspection of hist(X1) and hist(X2). > > Ted. > > -------------------------------------------------------------------- > E-Mail: (Ted Harding) <ted.hard...@manchester.ac.uk> > Fax-to-email: +44 (0)870 094 0861 > Date: 08-Jun-09 Time: 15:50:48 > ------------------------------ 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. > > -- View this message in context: http://www.nabble.com/Reflect-Back-to-Back-Histograms-in-x-axis--tp23923800p23930213.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.
