?panel.number This tells you what panel you're in and you can use that to determine which line to draw.
-- Bert On Tue, Jan 17, 2012 at 9:59 AM, Doran, Harold <hdo...@air.org> wrote: > Searched archives and found some old email threads on the topic. But mot > exactly what I think I need. Suppose I have a datafile such as tmp. > > tmp <- data.frame(var1 = c(rnorm(1000), rnorm(1000, 1, 1)), var2 = gl(2, > 1000)) > > I'd like a plot similar to the one below, but with an abline of v=0 in the > lower panel and v=1 in the upper panel. Code below creates two lines in each > panel, not quite sure how to separate them by panel. > > densityplot(~ var1|var2, tmp, > type = c('g', 'l'), > layout = c(1,2), > panel = function(x, ...){ > panel.densityplot(x, ...) > panel.abline(v = c(0,1)) > } > ) > > Thank you > Harold > > [[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. -- Bert Gunter Genentech Nonclinical Biostatistics Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm ______________________________________________ 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.