R help - Aug 2006 - graphic output file format

I would like to save graphics I produce in jpeg or gif
formats. The GDD package sounds like it should let me
to do this, but I cannot get it to install (error:
Can't find gd.h!). Anyone know what's up?

Thnx, C

What speaks against using the jpeg (or png) device?

type:

?jpeg

for help

Have also a look at the wiki:

http://wiki.r-project.org/rwiki/doku.php?id=tips:graphics-base:0savegraphs

Stefan

Conan Phelan schrieb:
> I would like to save graphics I produce in jpeg or gif
> formats. The GDD package sounds like it should let me
> to do this, but I cannot get it to install (error:
> Can't find gd.h!). Anyone know what's up?
>
> Thnx, C
>
> ______________________________________________
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> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
>
>

Please mail always also to the list, since it may be that there is
someone who could reply better and/or faster.

Especially in this case since I am only experienced in M$ Windows and
Linux so I am unable to guess whats wrong with OSX. does not even the
postscript device work? With postscript I get the best quality for printing.

e.g.:
postscript("test.eps", width = 8.0, height = 6.0, horizontal = FALSE,
onefile =FALSE, paper = "special")
curve(x^2)
dev.off()


Conan Phelan schrieb:
> Thanks for the feedback and link Stefan,
>
> Perhaps if I provide a little more background. (Pls
> forgive both my ignorance and my long windedness.)
>
>  I am on Mac OSX and am only able to load the Quartz
> graphic device (is that normal?). From quartz, I've
> only been able to generate pdf files, which do not
> match the quartz display to my satisfaction. I've been
> attempting to find a way to generate other output
> files for comparison. (I've managed to generate a bmp
> file that looked awful, after acquiring Gostscript). 
>
> Anyway, I figure R must able to produce high quality
> graphic outputs, so I'm trying different things. To
> this end I was hoping that the GDD package would allow
> me to load the x11 module but it seems to be a no-go
> (is there some system requirement I'm missing?).
>
> Conan
>
>