[Rd] PS & box(col=0) (PR#1114)
ripley@stats.ox.ac.uk
ripley@stats.ox.ac.uk
Fri, 12 Oct 2001 11:05:05 +0200 (MET DST)
On Thu, 4 Oct 2001 pgilbert@bank-banque-canada.ca wrote:
> The postscript driver in R-devel seems to choke on box(col=0). This is
> not a problem in R-1.3.1.
It was not a problem because 1.3.1 gave the wrong answer! In 1.3.1 on a
postscript device, the background was not painted if white (the default),
but col=0 did paint white. So the background colour was really
transparent, but col=0 was white.
In 1.4.0 white and transparent are distinct, and you can now set
transparent via an inline `col' setting. (It was only allowed for direct
setting by par when you made the report.)
The issue was not col=0, but the colour that corresponded to. Plotting in
col=0 is a lot less useful now, since it often does nothing.
>
> R : Copyright 2001, The R Development Core Team
> Version 1.4.0 Under development (unstable) (2001-09-22)
> ...
> Type `q()' to quit R.
>
> > plot(1:10, 1:10)
> > box(col=0)
> > postscript(file="zot.ps")
> > plot(1:10, 1:10)
> > box(col=0)
> Error in box(col = 0) : invalid value specified for graphics parameter
> "col".
> >
>
> Paul Gilbert
>
>
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--
Brian D. Ripley, ripley@stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
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