Edwin Commandeur
2006-Jan-05 10:27 UTC
[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
Dimitris Rizopoulos
2006-Jan-05 10:42 UTC
[R] problem with using lines command on windows XP machine
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" <e.commandeur at uvt.nl>
To: <r-help at stat.math.ethz.ch>
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
>
> ______________________________________________
> R-help at stat.math.ethz.ch 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
Petr Pikal
2006-Jan-05 12:32 UTC
[R] problem with using lines command on windows XP machine
Hi On 5 Jan 2006 at 11:27, Edwin Commandeur wrote: From: "Edwin Commandeur" <e.commandeur at uvt.nl> To: <r-help at stat.math.ethz.ch> Date sent: Thu, 5 Jan 2006 11:27:01 +0100 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)quite close abline(v=0) draws a vertical line at x=0 from help page Arguments: x, y: coordinate vectors of points to join. Maybe to mention abline in See also of lines help page could be good HTH Petr> > 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 > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.htmlPetr Pikal petr.pikal at precheza.cz
Liaw, Andy
2006-Jan-05 14:14 UTC
[R] problem with using lines command on windows XP machine
lines() connects the `dots' given. If you want straight lines spanning the entire graph, you are better off with abline(). Andy From: Edwin Commandeur> > Hi Petr and Eric, > > Thanks for your comments. > > To plot a vertical line, using "lines(0)" does not work, but > > lines(c(-1,0),c(0,1)) > > does the work in my simple test example. I just interpreted the ?lines > documentation wrong. > > So the "lines" command does work on my pc. Off course > "abline(v=0)" will > also do the job in this specific example... > > Sorry for the trouble, > > Edwin > > -----Original Message----- > From: Petr Pikal [mailto:petr.pikal at precheza.cz] > Sent: donderdag 5 januari 2006 13:32 > To: Edwin Commandeur; r-help at stat.math.ethz.ch > Subject: Re: [R] problem with using lines command on windows > XP machine > > > Hi > > On 5 Jan 2006 at 11:27, Edwin Commandeur wrote: > > From: "Edwin Commandeur" <e.commandeur at uvt.nl> > To: <r-help at stat.math.ethz.ch> > Date sent: Thu, 5 Jan 2006 11:27:01 +0100 > 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) > > quite close > > abline(v=0) > > draws a vertical line at x=0 > > from help page > Arguments: > > x, y: coordinate vectors of points to join. > > Maybe to mention abline in See also of lines help page could be good > > HTH > Petr > > > > > > > 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 > > > > ______________________________________________ > > R-help at stat.math.ethz.ch mailing list > > https://stat.ethz.ch/mailman/listinfo/r-help > > PLEASE do read the posting guide! > > http://www.R-project.org/posting-guide.html > > Petr Pikal > petr.pikal at precheza.cz > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html > >