On Feb 8, 2014, at 2:57 PM, Benjamin Ward (ENV) wrote: > Hi, fellow R users, > > I've been asked to make a plot with two datasets each with a different x > axis, and it's been suggested one be at the top and the other at the bottom > of the graph. I normally use ggplot2, and I know how to plot multiple > datasets by simply + a new geom with a different data option, but usually in > these case my different datasets have had the same x and y axes. Can I add a > new x axis to the top of the plot in ggplot2 or one of the other graphics > packages?
library(ggplot2) library(gridExtra) x <- qplot(mpg, disp, data = mtcars) y <- qplot(hp, wt, data = mtcars) grid.arrange(x,y) -- David Winsemius Alameda, CA, USA ______________________________________________ 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.