R help - Jun 2000 - question about scrolling up

Is there a way to scroll up to see R's output (in Linux, in
particular) without using the scrollbar (i.e., without using the
mouse)?  I find that hard to control.

This has become relevant because I've just discovered an
(apparently) undocumented feature.  If you write a file of
commands, you can run the file by saying source("file.R"), for
example.  If you include statistical tests in the file, they
won't run.  But if you say, source("rile,R",echo=T), they _will_
run.  Thus, you can include all your data analysis in the same
file and use this option setting to decide whether you want to
see it.

Of course, it is possible to save all the output to a file, but
that is almost as bad as having to use the mouse.

Jon Baron
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On Fri, 2 Jun 2000, Jonathan Baron wrote:
> Is there a way to scroll up to see R's output (in Linux, in
> particular) without using the scrollbar (i.e., without using the
> mouse)?  I find that hard to control.
You can run R under Emacs with ESS (see the FAQ). This gives you all the
Emacs commands for scrolling (and for editing)
 
> This has become relevant because I've just discovered an
> (apparently) undocumented feature.  If you write a file of
> commands, you can run the file by saying source("file.R"), for
> example.  If you include statistical tests in the file, they
> won't run.  But if you say, source("rile,R",echo=T), they
_will_
> run.  Thus, you can include all your data analysis in the same
> file and use this option setting to decide whether you want to
> see it.
The tests _will_ still run either way. You just won't see the output. Look
at the documentation for source(), options echo and print.eval.

	-thomas

Thomas Lumley
Assistant Professor, Biostatistics
University of Washington, Seattle

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