Thanks both, but unfortunately not. Here is a better illustration on what I want to achieve;
xs <- c(0,1,2,3); ys <- c(-1,0,0,1); lty <- c("FF11", "1FF1"); plot(NA, xlim=c(0,3), ylim=c(-1,1)); lines(xs, ys, col="red", lwd=2, lty=lty[1]); lines(xs, -ys, col="blue", lwd=2, lty=lty[2]); except that I don't want those short "1":s pieces. Ideally I'd like to use: lty <- c("FF00", "0FF0"); and dashes of any lengths, e.g. lty <- c("2200", "0220"); /Henrik On Sun, Oct 10, 2010 at 3:42 PM, Peter Alspach <peter.alsp...@plantandfood.co.nz> wrote: > Tena koe Henrik > > Not exactly what you are requesting but you could draw a solid line and then > the dashed line over the top: > > plot(1:10, panel.first=abline(0, 1, col='red', lwd=2), panel.last=abline(0, > 1, col='blue', lty='88', lwd=2)) > > or > > plot(1:10) > abline(0, 1, col='red', lwd=2) > abline(0, 1, col='blue', lty='88', lwd=2)) > > This may be system or graphics device dependent (I'm using Windows). > > HTH .... > > Peter Alspach > >> -----Original Message----- >> From: r-help-boun...@r-project.org [mailto:r-help-boun...@r- >> project.org] On Behalf Of Henrik Bengtsson >> Sent: Monday, 11 October 2010 10:50 a.m. >> To: r-help >> Subject: [R] Line Type Specification: lty="<on><off>" but >> lty="<off><on>"? >> >> Hi, >> >> Section 'Line Type Specification' in help(par) explains how you can do >> custom line types. For example: >> >> plot(NA, xlim=c(0,1), ylim=c(0,1)); >> abline(h=1/2, col="blue", lwd=2, lty="88"); >> >> will draw a dashed line segment where the line is composed of 8 units >> of "on" (blue color) and 8 units of "off" (transparent), then >> repeated. >> >> Now I'd like to draw a second red line overlapping this one, but where >> the "gaps" are now red. Technically, I think the following would >> define that: >> >> abline(h=1/2, col="red", lwd=2, lty="0880"); >> >> that is 0 "on", 8 "off", 8 "on" (red color) and 0 "off", then repeated. >> >> However, zeros are not allowed (actually, why not?) >> >> Any suggestions to draw one red and one blue dashed lines that, if >> overlapping, the the overlapping segments will be blue, red, blue, >> red, ...? >> >> /Henrik >> >> ______________________________________________ >> 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. > > The contents of this e-mail are confidential and may be subject to legal > privilege. > If you are not the intended recipient you must not use, disseminate, > distribute or > reproduce all or any part of this e-mail or attachments. If you have > received this > e-mail in error, please notify the sender and delete all material pertaining > to this > e-mail. Any opinion or views expressed in this e-mail are those of the > individual > sender and may not represent those of The New Zealand Institute for Plant and > Food Research Limited. > > ______________________________________________ > 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.