[R] New project: littler for GNU R

Prof Brian Ripley ripley at stats.ox.ac.uk
Tue Sep 26 23:16:19 CEST 2006

On Tue, 26 Sep 2006, Richard M. Heiberger wrote:

> I like this plan and have now played with the concept.  I did the following
> on Windows in cygwin.  It would also work in Unix, and I think could be tickled
> to work on the standard MS cmd line in Windows.  It would certainly work
> on Windows with a Windows-native port of the basic unix utilities.
> echo 'options(echo=FALSE);cat(pi^2,"\n")' | Rterm --no-save
> This produces an output file, that normally shows up in the *shell*
> buffer, but could be redirected.   The obvious place to redirect it to is
> awk with a script to filter out everything above the echo of the options()
> line.
> The only change to R needed to remove the need for an awk script
> is to suppress the display of the copyright message and startup
> information.  I suppose that could be done with a new
> --suppress-startup-info argument to Rterm.

It is called --slave.

> The other optimizations that Jeffrey and Dirk have, such as
> suppressing the loading of many of the standard packages,
> would also need to be done.


and variables is already widely used in the R build process.

> Very good work and concept.
> Rich
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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 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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