[R] Tildes in R docmentation.
Prof Brian D Ripley
ripley at stats.ox.ac.uk
Fri Sep 28 08:49:27 CEST 2001
This is widely used in the system help files. See e.g lm.Rd which has
\code{response ~ terms}.
That works in text, html and latex (how do you think we get a reference
manual made?).
\textasciitilde is a standard part of latex (in file latex.ltx). The
feature was introduced in the 1995/12/01 release (see the usrguide.tex) so
it looks as if your latex is more than 5 years' old, or broken.
[...]
> However the Rd to latex processor seems to be converting the ~
> into ``\textasciitilde{}'' --- with a pair of braces on the end
> as if there should be an argument to the control sequence. And
> then latex is unable to find that control sequence.
That's not what {} means. It's an empty token to escape the following
space. (la)tex does not use {} to introduce arguments.
> Can anyone explain to me what's going on, and how to go about
> solving the problem?
You do need a reasonably recent fully functional latex system. Probably no
more than a couple of years' old (we don't have ancient installations
around to test).
[...]
--
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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