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Replace $ with \ $; Chitr options: echo = TRUE, results = 'markup; $ = \\ $ '

I am trying to print R code in a latex document using knitr.

I have the following simple code:

  \begin{frame}{Plot Code}
  <<plotcode,eval=FALSE,echo=TRUE,results='markup;$=\\$'>>=

... a simple lm from randomly received data ...

  yhat.fit <- yhat$fit[,"fit"]

... simpler code ...

 \end{frame}

This will start, BUT, there is no replacement for the $ sign. Instead, I get the math mode for fit [, "fit"] in the slide (along with the "missing inserted" errors from pdflatex compilation.

I would rather not have a math mode; instead, I would like to see the $ sign, since it is an integral part of the R code.

, $ \$ .tex, , - , , . , , .

+3
1

, results='markup;$=\\$'. results ; markup, asis, hide hold.

, $ . , fragile. :

\documentclass{beamer}
\begin{document}
\title{A Minimal Demo of knitr}
\author{Yihui Xie}

\maketitle

% very important to use option [fragile] for frames containing code output!

\begin{frame}[fragile]

You can test if \textbf{knitr} works with this minimal demo. OK, let's
get started with some boring random numbers:

<<boring-chunk>>=
fit = lm(dist ~ speed, data = cars)
fit$coefficients
print(sessionInfo(), locale = FALSE)
@

\end{frame}

\end{document}

:

knitr with beamer

+3

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