(PR#13287) Line breaks in mathematical formulae in Rd files
I think the 'problem' is a lack of attention to the manual. deqn gives ?displayed equations? (as in LaTeX's displaymath environment, or TeX's $$...$$). seems pretty clear to me, and I hope to any LaTeX user.
On Fri, 14 Nov 2008, xieyihui at gmail.com wrote:
Hi,
This is a problem about writing R documentation (R-exts 2.6). The
command "\deqn" defined in "Rd.sty" is:
\newcommand{\deqn}[2]{\[#1\]}
which will put mathematical formulae in the "displaymath" environment;
Well, surprise, surprise it does what it is documented to do!
that means line breaks are not allowed (or will not be shown) in
formulae, but sometimes we do need multiple lines of formulae. One
solution is to write several equations using "\deqn", but I think to
change the definition of "\deqn" is better:
\newcommand{\deqn}[2]{\begin{eqnarray*}#1\end{eqnarray*}}
That will change the spacing.
This will not change the pdfLaTeX output effect, moreover, line breaks and alignments using "&" will be available in math formulae.
Not to the non-latex conversions.
Regards, Yihui -- Yihui Xie <xieyihui at gmail.com> Phone: +86-(0)10-82509086 Fax: +86-(0)10-82509086 Mobile: +86-15810805877 Homepage: http://www.yihui.name School of Statistics, Room 1037, Mingde Main Building, Renmin University of China, Beijing, 100872, China
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