Re: [R] New project: littler for GNU R

From: Deepayan Sarkar <deepayan.sarkar_at_gmail.com>
Date: Tue 26 Sep 2006 - 21:31:49 GMT

On 9/26/06, Richard M. Heiberger <rmh@temple.edu> 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.

It seems to me that a big difference between this and littler is how stdin is treated. How would you implement the fsizer.r example using this concept?

> 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.

I typically use

--vanilla --slave

(which I assume would work on Windows too).

> 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.
>
> Very good work and concept.
>
> Rich
>



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