Using the following lattice plot as an example, I would like to add horizontal lines where y=0:
library(lattice) library(grid) fac <- gl(4,12) x <- letters[rep(1:3,16)] y <- runif(48,min=0.0) dotplot(y~x|fac) I've tried it with grid.lines using npc and native units, which works fine unless I change the size of the output device - then the lines are in the wrong place. Is there a way to do this that is independent of the output device size? ______________________________________________ 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.
