Try: y = rnorm(50) z = factor(rep(1:5, each=10)) boxplot(y~z, horizontal=TRUE) stripchart(y~z, add=TRUE)
HTH, Andy > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > [EMAIL PROTECTED] > Sent: Tuesday, May 04, 2004 10:48 AM > To: [EMAIL PROTECTED] > Subject: [R] Superposing data on boxplot > > > Hi folks, > > I have a vaiable Y and an associated factor Z at several (13) > levels. > > boxplot(Y~Z) > > produces a nice array of boxplots, one for each level of Z, > and each duly labaelled with its level of Z. > > I would like to superpose on each boxplot the actual data > points which it represents, i.e. do something conceptually > (though not in real R) expressed as > > points(Y~Z) > > or > > points(Z,Y) > > It can be done "with bare hands" along the lines of > > B<-boxplot(Y~Z) > x<-bxp(B) > X<-rep(x,ngroups) > points(X,Y) > > where ngroups is the number of data at each level of Z, > *provided* the data are pre-sorted by level of Z and in the > same order as these levels occurr in the boxplot. But of course > they're not! > > OK, I could do this by hand as well, but now it's getting a bit > tedious, and I'm wondering if there's a better way. > > Thanks for any suggestions, > Ted. > > > -------------------------------------------------------------------- > E-Mail: (Ted Harding) <[EMAIL PROTECTED]> > Fax-to-email: +44 (0)870 167 1972 > Date: 04-May-04 Time: 15:48:23 > ------------------------------ XFMail ------------------------------ > > ______________________________________________ > [EMAIL PROTECTED] mailing list > https://www.stat.math.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html > > ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
