Message-ID: <Pine.LNX.4.61.0509271657570.10946@gannet.stats>
Date: 2005-09-27T16:02:32Z
From: Brian Ripley
Subject: quick "points" question
In-Reply-To: <43395DE6.8070908@mrc-bsu.cam.ac.uk>
On Tue, 27 Sep 2005, Richard Nixon wrote:
> Hi
> Just one of those niggles.......
>
> I've just been trying to plot a filled circle.
> I thought that this would do it
>
> plot(1,1,type="n")
> points(1,1,pch=1,bg="blue",cex=5)
> #bg: background ("fill") color for open plot symbols
>
> But I need to do this instead
> points(1.2,1,pch=19,col="blue",cex=5)
>
> Am I misunderstanding the "bg" option in the points function?
Yes. See the examples. pch=1 is not an `open plot symbol': 21-25 are.
So in your case
points(1.3, 1, pch=21, col="blue", bg="red", cex=5)
may be illuminating.
--
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595