[Rd] Scatter plot calling R function from C
Prof Brian Ripley
Sun, 11 Feb 2001 16:49:28 +0000 (GMT)
On Sun, 11 Feb 2001, Tsumiyama Isao wrote:
> Dear R users,
> I want to create a C program drawing a scatter plot
> with R functions.
> Is it possible to do such a thing with interfaces declared
> in 'Rgraphics.h'? If so, I would like to get sample C sources.
Strictly no. You would need to open an R graphics device, and you can't
do that from the publically declared headers. And you would need to
handle all the error conditions that call back into R.
>From C code called from R you can write to an already opened graphics
device. Alternatives, you can embed R in your C program and then call R
graphics via R calls.
I don't think there are many examples: Rgraphics.h was included for
use by experts writing addons. Paul Murrell may be able to help more.
Brian D. Ripley, email@example.com
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
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