[R] jpeg in R for Windows?

[Prof Brian D Ripley]

On Thu, 30 Nov 2000, Robert Lundquist wrote:

> I have tried to put graphs in jpeg files, but even if a file is produced,
> neither the graphics software nor the web browser can open such a file:
> "Can't read file header". Any suggestions as to what might cause this? 

No idea, as it works here with rw1011 in both IE5.01 and Netscape 4.75.  I
suspect you did not produce or save the file correctly, and as you supplied
no information about what you did or the version of R or ....

> 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?

No, but recent Netscape and IE can, and I think 4.x or later of either
can.  From memory (it's a long time since I saw either) 3.x versions could
not.

-- 
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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