[R] Swaeve, Beamer and \alt

[Jarrod Hadfield]

Hi,

I am having trouble getting \alt (or \altenv) to work with  
Schunk/Sinput and was wondering if anybody had had success? With the  
slide

\begin{frame}[fragile]\frametitle{Basic R}
\alt<2>{
<<echo=TRUE>>=
2+2
@
}{
<<echo=TRUE, eval=FALSE>>=
2+2
@
}
\end{frame}

I get the error message:


! FancyVerb Error:
   Extraneous input `> 2+2 \end {Sinput} \end {Schunk} ' between  
\begin{Sinput}[
<key=value>] and line end
.
\FV at Error ... {FancyVerb Error:
\space \space #1
}

which cannot be fixed using the fragile or containsverbatim options  
for the frame.

Thanks for any help,


Jarrod


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