[R] non-interactive R usage...

[Dirk Eddelbuettel]

> Does R give you the capability to run a script (read as non-interactive) that would perform a statistical task, and then send output
> to a file?  For example: read a set of data from a file, generate a JPEG _file_ containing a plot of the data (with some specific
> stat calcs plotted of course), and then exit?

See "R --help"  for 

	R [options] [< infile] [> outfile]
	
> I do capacity planning and would like to be able to have JPEG plots of real time statistical data appear on web pages, so I'm
> thinking that a CGI can be executed that starts R up, generates a plot, and writes it to a file.  We currently use gnuplot, but with
> all of the statistical needs we have, it is turning out to be less flexible than we had hoped.

Also note that the FAQ mentions two R / WWW projects and I made use of Rcgi for
a simple web interface, including graph creation. Works well.

Dirk

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