Tena koe Jonathan There are lots of ways - using base graphics or lattice or ggplot. As a start, using base graphics:
plot(plothelpX, plothelpA2, col=factor(plothelpB)) points(plothelpX, plothelpA1, col=factor(plothelpB)) You'll also need the pch argument to plot and, presumably, xlab, ylab and others. For the key, check the help for legend: ?legend HTH Peter Alspach > -----Original Message----- > From: r-help-boun...@r-project.org > [mailto:r-help-boun...@r-project.org] On Behalf Of Jonathan Greenberg > Sent: Thursday, 21 January 2010 12:54 p.m. > To: r-help > Subject: [R] x,y plot question (two sets of labels) > > I'm trying to figure out the best way to do a scatterplot > using the following data as an example: > > plothelp_x=1:10 > plothelp_A1=sin(plothelp_x) > plothelp_A2=tan(plothelp_x) > plothelp_B=c("A","B","C","A","B","C","A","B","C","A") > > (note that all 4 of these vectors have 10 entries each) > > What I would like is to have two plots on the same graph: > > 1) plothelp_A1 vs. plothelp_x > 2) plothelp_A2 vs. plothelp_x > > I want plot #1 to have a set symbol SHAPE (say, crosses) and > plot #2 a different symbol shape (say, dots). On top of > that, I want all points to be color coded based on > plothelp_B, e.g. all As are black, all Bs are red, all Cs are > blue; e.g a sin point with the letter "A" should be a black > cross, a tan point with the letter C should be a red dot. > Finally, I'd like two have TWO keys in the graph showing a) > what the symbol shapes represent (e.g. cross=sin, dot=tan), > and b) what the colors mean. > > Thanks for any help you can give me! > > --j > > -- > > Jonathan A. Greenberg, PhD > Postdoctoral Scholar > Center for Spatial Technologies and Remote Sensing (CSTARS) > University of California, Davis One Shields Avenue The Barn, > Room 250N Davis, CA 95616 > Phone: 415-763-5476 > AIM: jgrn307, MSN: jgrn...@hotmail.com, Gchat: jgrn307 > > ______________________________________________ > 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. > ______________________________________________ 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.
