On 05/05/2009 5:04 AM, robin hankin wrote:
Hi DuncanI asked this question to R-devel, and there was no reply, so I thought I'd ask you directly. Any ideas? best wishes Robin I am having difficulty including a LaTeX formula in an Rd file. The example given in section 2.7 in 'Parsing Rd files' is: \deqn{ f(x) = \left\{ \begin{array}{ll} 0 & x<0 \\ 1 & x\ge 0 \end{array} \right. }{non latex} For me, this gives: \deqn{ f(x) = \left\{ \begin{array}{ll} 0 \& x<0 \bsl{} 1 \& x\ge 0 \end{array} \right. }{} in the tex file, which is not desired because the ampersand is escaped; the '&' symbol appears in the dvi file, and I want an ampersand to indicate alignment. Also, the '\\' appears as \bsl{}, which is undesired; the resulting dvi file (made by R CMD Rd2dvi) looks wrong. How do I write the Rd file so as to produce non-escaped ampersands?
I think the way the docs show it should work but there's a bug in the conversion. If you use the new converter tools::Rd2latex, it comes out as expected. So there's a bug in the Perl version of Rdconv, presumably in share/perl/R/Rdconv.pm, and you might want to try to track it down and fix it if you know Perl well enough. An alternative might be some kludge involving \input{}: put the equation in its own file where Rdconv will ignore it.
I've cc'd R-devel on this again; maybe someone else can jump in with a better idea.
Duncan Murdoch ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
