I think you need "abline(v = 0)". I hope it helps.
Best, Dimitris ---- Dimitris Rizopoulos Ph.D. Student Biostatistical Centre School of Public Health Catholic University of Leuven Address: Kapucijnenvoer 35, Leuven, Belgium Tel: +32/(0)16/336899 Fax: +32/(0)16/337015 Web: http://www.med.kuleuven.be/biostat/ http://www.student.kuleuven.be/~m0390867/dimitris.htm ----- Original Message ----- From: "Edwin Commandeur" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Thursday, January 05, 2006 11:27 AM Subject: [R] problem with using lines command on windows XP machine > Hello, > > I'm using R version 2.2.0 installed on windows XP machine, with SP2 > (maybe > it's also interesting to note it's laptop, so it outputs to a laptop > screen) > a l and I wanted to draw a line in a graph, but it does not seem to > work. > > To test it I use the following code: > > x = c(-1,0,1) > y = c(-1,0,1) > plot(x,y, type="l", xlim=c(-1,1), ylim=c(-1,1)) > lines(0) > > If I understand the documentation right this should draw a line > (with > default settings, I'm not setting any parameters) at x=0. > > I tried goofing around a bit setting linewidth and color > differently, I > tried using xy.coords etc, but no line appeared in the graph. > > The commands abline and segments work perfectly fine (so I am now > using > segments to plot the line I want), but I still think the lines > command > should work. > > Does anybody has similar problems drawing lines on XP machines (or > laptops > in general?)? Or I am doing something abominably wrong? > > Greetings and thanks in advance for any replies, > Edwin Commandeur > > ______________________________________________ > [email protected] mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html > Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
