[R] Transparent background for graphs

Prof Brian D Ripley ripley at stats.ox.ac.uk
Mon Jun 25 10:55:05 CEST 2001

On Mon, 25 Jun 2001, James Rimmer wrote:

> Hello all
> Is it possible to export graphs (in png/jpg/bmp format) with a transparent
> background using R1.2.3?

No.  It is not possible to plot them with a transparent background either:
the background is solid white by default.

There are lots of ways to convert the exported plot to have a transparent
background after export, though.  For example, convert -transparency foo
will do it.  (convert is part of ImageMagick.)

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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