On Thu, 30 Sep 2010, Johannes Huesing wrote:
I am failing to uncover Sweave chunks step by step using the LaTeX beamer
class.
The following minimal example:
\documentclass{beamer}
\usepackage{Sweave}
\begin{document}
\begin{frame}[fragile]
In the year \uncover<2->{25}\uncover<3->{\Sexpr{5*5}}
\uncover<4->{
<<echo=TRUE, print=TRUE>>=
5*5*101
@
}
\end{frame}
\end{document}
leads to an error message when running pdflatex over the *.tex file:
[...]
! FancyVerb Error:
Extraneous input ` 2525 \end {Soutput} \end {Schunk} \bea...@endcovered ' bet
ween \begin{Soutput}[<key=value>] and line end
.
\...@error ... {FancyVerb Error:
\space \space #1
}
I do not have enough of an understanding of LaTeX to explain this, but it
seems \uncover can be tricky.
This works for me:
\documentclass{beamer}
\usepackage{Sweave}
\begin{document}
\begin{frame}[fragile]
In the year \uncover<2->{25}\uncover<3->{\Sexpr{5*5}}
\begin{uncoverenv}<4->
<<echo=TRUE, print=TRUE>>=
5*5*101
@ %def
\end{uncoverenv}
\end{frame}
\end{document}
--
Johannes H??sing There is something fascinating about science.
One gets such wholesale returns of conjecture
mailto:johan...@huesing.name from such a trifling investment of fact.
http://derwisch.wikidot.com (Mark Twain, "Life on the Mississippi")
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Charles C. Berry (858) 534-2098
Dept of Family/Preventive Medicine
E mailto:cbe...@tajo.ucsd.edu UC San Diego
http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901
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and provide commented, minimal, self-contained, reproducible code.
