[R] help output paged in separate window
Prof Brian Ripley
ripley at stats.ox.ac.uk
Sun May 25 14:05:25 CEST 2003
On Sun, 25 May 2003, Frank E Harrell Jr wrote:
> On Sun, 25 May 2003 10:42:27 +0100 (BST)
> Ted.Harding at nessie.mcc.ac.uk wrote:
> > On 24-May-03 Ted Harding wrote:
> > > I use R in X windows on Linux.
> > > [...]
> > > Often, I would like to have the output from 'help' pop up in a separate
> > > window so that I can continue to work in the R window while reading the
> > > help. The "help" window could then be closed when interest in this
> > > particular help dwindles.
> > > [...]
> > Thanks to Jonathan Baron and Peter Dalgaard for private comments and help
> > on this question. Peter in particular pointed out that
> > library(tcltk); options(pager=tkpager)
> > does the trick of detaching the pager from the R window exactly as
> > desired, with relatively small overhead (as opposed to an HTML browser
> > for 'help.start', or ESS: I put enough load on this 48MB laptop without
> > having a multimegabyte Fat Man sitting on my memory).
(BTW, if your Window Manager has a pager that will work at least as well
as PAGER: e.g. CDE users can use dtpad and that is much lighter weight
than the ca 2Mb needed loading up Tcl/Tk. You can also make PAGER run
less in another instance of your favourite terminal -- which as an
additional instance should be cheap.)
> tkpager works well; I just wish it handled the "see also" links to other help files.
> I wish that help.start() would work with the blazing fast html browser
> dillo (Linux/Unix). dillo is a 240K executable written in C.
Presumably it doesn't work because `dillo' is not really a conforming HTML
browser? What actually are the symptoms?
help.start() does work with lynx last time I looked, and lynx really is
small, You can tell essentially nothing about the resident set size of the
running executable from the file size. From a web page on gnu.org I found
The 'dillo' Web browser is a very fast, extremely small browser. Source
is less than 365 KB, and the binary is around 265 KB. It is a graphical
browser built upon GTK+, and it renders a good subset of HTML, excluding
Note that it requires GTK+, and that is not at all small.
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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