[R] increasing scrollback lines/rw0901

Prof Brian D Ripley ripley at stats.ox.ac.uk
Tue Feb 8 08:14:31 CET 2000

On Mon, 7 Feb 2000, Griffith Feeney wrote:

> I'd like to increase the number of lines available via the vertical
> scrolling bar when running RGui.exe under win95. Would think this is set in
> options() or /etc/Rconsole, but haven't been able to figure out how. Note
> that it's output I'm concerened with viewing, not the command history. Can
> anyone help? Thanks!

It's compiled in. You need to re-compile with an increased setting of
DIMLBUF (and perhaps MLBUF) in console.c.  (Almost all scrolling terminals
do have a fixed maximum history buffer, often much less than that one.)

I am not sure why you would want to to this though: you can avoid the limit
entirely by running Rterm.exe, or saving excessively long output to a file
with sink().

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 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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