[R] plotting symbols: bug?

Prof Brian Ripley ripley at stats.ox.ac.uk
Fri Feb 22 22:58:40 CET 2002


On Fri, 22 Feb 2002, Thomas de Cornulier wrote:

> Dear all,
> I spent a long time today to find out why symbols( ) didn't display all my points.
> In fact, the function cannot display circles with a small radius when the range of
> radii is too large, whereas circles with radius=0 are drawn as dots!
> here are a simple examples:
> > symbols(sample(1:8),sample(1:8),circle=c(1,4,88,0,0,0,0,50),inches=0.2)
> #plots 6 circles
> > symbols(sample(1:8),sample(1:8),circle=c(0,0,88,0,0,0,0,50),inches=0.2)
> #plots 8 circles
>
> this looks quite illogical to me, should it be considered as a bug?
>
> I don't think it is of use, however:
> I did this in R 1.3.0 and 1.4.1 both running on Windows 95

The version information was a great deal of use. Both work correctly for
me on Windows 2000/XP, so it looks like the bug is in Windows 95 and/or
your graphics card driver.  Time for a upgrade?

-- 
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 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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