在xtable中处理Latex反斜杠 [英] Handling Latex backslashes in xtable

问题描述

我有一个包含以下列的表:

I have a table that includes the following column:

 mytable <- data.frame(beta_0 = c(1,2,3)

我想做的是在乳胶标记中输出带有列标题的表，例如$\beta_0$

What I want to do is output a table with a column header in latex markup, e.g. $\beta_0$

但是，我似乎无法弄清楚如何使用print.xtable输出"$ \ beta_0 $":

However, I can not seem to figure out how to output the "$\beta_0$" using print.xtable:

colnames(mytable) <- "$\beta_0$"
library(xtable)
print(xtable(mytable), include.rownames = F)

返回

\eta\_0\$

代替

$\beta_0$

我认为答案是print.xtable的"sanitize.colnames.function"参数，但是对我来说如何使用它并不明显，并且?print.xtable没有提供示例.

I presume that the answer is the "sanitize.colnames.function" argument to print.xtable, but it is not obvious to me how to use this, and ?print.xtable provides no examples.

具体来说，我想输出如下乳胶表:

Specifically, I would like to output a latex table like:

\begin{table}[ht]
 \begin{center}
  \begin{tabular}{r}
    \hline
    $\beta_0$ \\ 
    \hline
    1.00 \\ 
    2.00 \\ 
    3.00 \\ 
    \hline
  \end{tabular}
 \end{center}
\end{table}

推荐答案

这里有两个问题；首先，您需要一个双反斜杠，否则会将其视为控制序列.其次，默认情况下，xtable清除文本，以免破坏LaTeX.使用sanitize.参数之一来控制它.不进行消毒，将身份功能传递给它.

Two issues here; first, you need a double backslash as otherwise it treats it as a control sequence. Second, by default, xtable sanitizes text so that it won't break LaTeX. Use one of the sanitize. parameters to control this; to do no sanitizing, pass it the identity function.

colnames(mytable) <- "$\\beta_0$"
print(xtable(mytable), include.rownames = F, sanitize.colnames.function = identity)

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