On Mon, 10 May 1999, John Peters wrote:
>
> The following seems weird:
>
> > format("\pm2")
> [1] "pm2"
>
> > format("\\pm2")
> [1] "\\\\pm2"
> >
>
> i.e. it seems impossible to set up a x so that "format(x)"
returns
> "\\pm2", and in turn "cat(format(x))" prints
"\pm2". ("\pm" is latex for
> "plus/minus").
>
> R is version 0.64 for win95.
No such version, that I know of. I assume you have 0.64.0 for
Windows (rw0640)
>
> I want to add a row of headings to a matrix of character objects, then
> use "format" on each column to make the matrix less ragged (not
> essential), and cat the result for use as a latex table.
>
> Splus 3.4 does the same, and I currently regard compatibility with Splus
> as a very convenient feature, so I suppose it is not a bug.
>
> I would appreciate any explanations for the behaviour, and any hints
> about neat workarounds.
If M is your matrix,
M[] <- gsub("\\\\\\\\", "\\\\", M)
write(M, ncol=ncol(M), file="whatever")
does the trick for me. (That turns "\\\\pm2" into "\\pm2"
that write
then prints as "\pm2". Beware: print prints it as "\\pm2".)
--
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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