Not sure if it is quite the same but ggplot2 does this as its default formatting.
library(ggplot2) x<-rnorm(100) qplot(factor(0),x, geom="boxplot") John Kane Kingston ON Canada > -----Original Message----- > From: marongiu.lu...@gmail.com > Sent: Tue, 18 Sep 2012 09:35:47 +0100 > To: r-help@r-project.org > Subject: [R] add reference lines (or grid) in background > > Dear all, > > Is there a simple way to add reference lines in background? I am trying > with > abline() or grid() but the lines, since they are executed after the plot > function, are draw on top. How can I draw such lines beneath the main > plot? > Here is an example: > > > > x<-rnorm(100) > > boxplot(x) > > abline(h=c(-1,0,1)) > > grid(NA, 4, lwd = 2) > > > > regards, > > > > Luigi Marongiu, MSc > > > > > [[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. ____________________________________________________________ GET FREE SMILEYS FOR YOUR IM & EMAIL - Learn more at http://www.inbox.com/smileys Works with AIM®, MSN® Messenger, Yahoo!® Messenger, ICQ®, Google Talk™ and most webmails ______________________________________________ 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.