Knitr Kable(Sweave)中的LaTeX数学表达式 [英] LaTeX math expression in knitr kable (Sweave)

问题描述

是否可以以及如何在带有kable的knitr/Sweave报告中使用LaTeX数学表达式?在下面的示例中，$x^2$是按原样"呈现的.

Is it possible and how to use a LaTeX math expression in a knitr/Sweave report with kable? In the example below, $x^2$ is rendered "as is".

对于xtable，在下面的示例中，我将使用print.xtable的选项sanitize.colnames.function = function(x) x. kable有这样的选择吗?

With xtable, for the example below, I would use the option sanitize.colnames.function = function(x) x of print.xtable. Is there such an option for kable?

\documentclass{article}
\usepackage{booktabs}
\begin{document}

<<>>=
library(knitr)
dat <- mtcars[1:5,1:5]
options(knitr.table.format = "latex")
@

<<results='asis'>>=
names(dat)[1] <- "$x^2$"
kable(dat, booktabs=TRUE, caption="My table")
@

\end{document}

推荐答案

是的，请使用选项escape=FALSE:

kable(dat, booktabs = TRUE, caption = "My table", escape = FALSE)

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