Frank - Roughly speaking:
matplot(c(0,10), rbind(before, after), type="l", axes=F, xlab="time", ylab="measurement") axis(2) axis(1, c(0,10), c("before","after")) Should do the job, if I interpret correctly the plot you have in mind. See help("matplot") : Details, and many pages of help("par") for ways to modify and decorate the basic plot. - tom blackwell - u michigan medical school - ann arbor - On Wed, 28 May 2003, Frank Mattes wrote: > Dear R help-list reader, > > I would like to generate a plot which compares to states in a patient > treatment, before and after. for this reason I have generated a vector > before<-c(1,30,23,40) > and > after<-c(20,10,20,60) > the first element in "before" corresponds to the first element in "after". > I would like and generate a dotplot with > before and after as x-scale, the elements of "before" and "after" on > the y-scale and the corresponding elements connected with a line. > > However, so far I couldn't figure out how to do this in R. If anyone > as a suggestion, please let me know > > Many thanks > > Frank > -- > Frank Mattes, MD e-mail: [EMAIL PROTECTED] > Department of Virology fax 0044(0)207 8302854 > Royal Free Hospital and tel 0044(0)207 8302997 > University College Medical School > London > > ______________________________________________ > [EMAIL PROTECTED] mailing list > https://www.stat.math.ethz.ch/mailman/listinfo/r-help > ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help