Hi, Try the following,
plot(1:10,rnorm(10),t="o") ## fill the points in white plot(1:10,rnorm(10),t="o",pch=21,bg="white") You could also try this with Grid graphics, library(gridExtra) # like type="o" grid.barbed(space=0) # like type="b" grid.barbed(space=1) # like the example above, but without filling the dots grid.barbed(space=0.5) (I may be wrong but don't recall that this parameter is tunable with base graphics) HTH, baptiste On 14 December 2010 16:33, Andrew Collier <collie...@gmail.com> wrote: > hi, > > i am sure that this is a trivial question but i have not been able to > find an answer by searching the mailing lists. i want to plot points on > a graph, joined by lines. the command that i am using is > > points(x, y, type = "b", pch = 21) > > this plots nice open circles at the data points and draws lines between > them. however, the lines do not come all the way up to the edge of the > circles but stop some small distance away so that there is an empty > "margin" around the circles. is there a way to get rid of this margin? > my first guess was that there would be an option to par() but i did not > find anything there. any suggestions would be appreciated. > > thanks! > > best regards, > andrew. > > -- > Andrew B. Collier > > Physicist > Waves and Space Plasmas Group > Hermanus Magnetic Observatory > > Honorary Senior Lecturer tel: +27 31 2601157 > Space Physics Research Institute fax: +27 31 2607795 > University of KwaZulu-Natal, Durban, South Africa gsm: +27 83 3813655 > > ______________________________________________ > 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.
