That's brilliant, Greg. Thanks a bunch!
-----Original Message----- From: Greg Snow [mailto:greg.s...@imail.org] Sent: Thursday, February 11, 2010 2:01 PM To: Powell, Eric; 'r-help@r-project.org' Subject: RE: [R] Dual Category X-Axis (Multi-Level) Using mtext is probably one of the most straight forward ways. You can also use something like: par(mfrow=c(1,3), mar=c(5.1,0,4.1,0), oma=c(0,4.1,0,1.1)) one <- 1:3 two <- 2:5 three <- 6:4 names(one) <- LETTERS[1:3] names(two) <- letters[2:5] names(three) <- state.abb[6:4] tmp.ylim <- range(0,one,two,three) barplot(one, col='red', bty='n', xlab='one', ylim=tmp.ylim) barplot(two, col='green', bty='n', xlab='two', ylim=tmp.ylim, ylab='', yaxt='n') barplot(three, col='blue', xlab='three', bty='n', ylim=tmp.ylim, ylab='', yaxt='n') Or you could put that in a loop. Hope this helps, -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.s...@imail.org 801.408.8111 > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r- > project.org] On Behalf Of Powell, Eric > Sent: Thursday, February 11, 2010 9:16 AM > To: 'r-help@r-project.org' > Subject: [R] Dual Category X-Axis (Multi-Level) > > Hello, > > I was wondering if anyone knows of a way to produce multilevel x-axis > groupings similar to Excel's pivotcharts. (If you're not sure what I'm > talking about, here's an example: > http://peltiertech.com/WordPress/chart-with-a-dual-category-axis/). > > I realize that I could use mtext to manually insert text where desired, > but I was hoping for a more systematic approach. > > Thanks in advance, > -eric > > > [[alternative HTML version deleted]] > > ______________________________________________ > 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.