[R] jpeg in R for Windows?

Prof Brian Ripley ripley at stats.ox.ac.uk
Thu Nov 30 17:13:43 CET 2000

On Thu, 30 Nov 2000, Kjetil Kjernsmo wrote:

> On Thu, 30 Nov 2000, Kaspar Pflugshaupt wrote:
> >On 30.11.2000 14:38 Uhr, Robert Lundquist wrote:
> >
> >> BTW, the output would presumably be better as png files, but I don't really
> >> know if I can count on my students' web browsers being able to read this
> >> format. Anyone who knows what browsers *can't* handle png files?
> >
> >You may be able  to find this information on the png home page at
> >http://www.libpng.org/pub/png/ . Seems to be unreachable right now (for me,
> >that is).
> It was unreachable for me too.

Lots of mirrors are available, though, and they say Netscape and IE
got support in late 1997 except for transparency, which our driver does not
produce.  E.g.


> >To my little experience, "new" browsers will display png files all right
> >("new" meaning something >= Netscape 4.7 or Explorer 5). Older versions may
> >display them partly (without transparency effects, for instance). Or not at
> >all. :-(
> <rant>
> Yes. Unfortunately, PNG is yet another example of good technologies being
> (or have been) ignored by browser makers because browser makers are more
> concerned with winning a browser war than providing useful software.
> </rant>
> I would suggest installing the ImageMagick "display" utility on all
> systems. <URL:http://www.simplesystems.org/ImageMagick/www/display.html>.
> It can display images on all systems running X server. Also, ImageMagick
> itself <URL:http://www.simplesystems.org/ImageMagick/> runs on most
> popular OSes, including Mac and Win32 (and obviously, unices), so you may
> get something out of that that can be used to view graphs on most
> platforms.

Um.  It's an awful lot of effort to do that on Windows, and the only stable
X servers I know there cost real money.  Just to confirm, ImageMagick on
Windows requires an X server, and in my experience a good one at that.

GIMP will also work on most platforms, natively on Win32.

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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