[R] erase.screen bug?

[Prof Brian Ripley]

Is your background colour set to transparent?  There is no way to erase 
screens in the R/S model: all you can do is overpaint with the background.
And the default on-screen background colour is ... transparent.

This described in the Warning (and elsewhere) on the help page.

With a solid background colour it appears to work.

On Mon, 23 Jun 2003, Angelo Canty wrote:

> I'm using R 1.7.1 on a Windows 2K computer.  For some reason erase.screen
> does not seem to be working correctly.  That is it does not erase the
> requested screen.  That is the old graphic is still visible and any
> subsequent graphics are superimposed over it making them impossible to
> read.  What is worse is that they print out this way also.  The same
> behaviour happens with a Windows XP computer.  I have not yet examined
> this on Unix but will do so tomorrow.  Is this a known problem?  Is
> there an easy workaround?

-- 
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