一直无法在 Rmarkdown beamer 中生成表格，并显示以下错误消息

Question

我正在尝试在 rmarkdown beamer (Rstudio) 中创建下表（附在下面）。它最初有效，但自从我更新了 R (3.6.3) 和 Rstudio 后，它就没有用了。我还更新了所有 pkg​​ 并重新安装了 tinytex pkg，但它不断生成以下错误消息：

output file: dp02_slide.knit.md

! File ended while scanning use of \beamer@collect@@body.
<inserted text> 
                \par 
<*> dp02_slide.tex

Error: LaTeX failed to compile dp02_slide.tex. See https://yihui.org/tinytex/r/#debugging for debugging tips. See dp02_slide.log for more info.
Execution halted

---
title: "Big Business" 
output: 
  beamer_presentation:
      citation_package: natbib
      theme: "boxes"
header-includes:
- \widowpenalties 1 150
- \usepackage{amsmath}
- \renewcommand{\bibname}{References}
- \usepackage{adjustbox}
- \usepackage{booktabs}
- \usepackage{tikz}
- \usepackage{verbatim}
- \usepackage{chronosys}
- \usepackage{stackengine}
- \usepackage{xcolor}
- \usepackage{babel}
- \usetikzlibrary{arrows.meta}
- \usetikzlibrary{arrows,decorations.markings}
- \usetikzlibrary{intersections}
- \usepackage[font=small]{caption}
- \usepackage{adjustbox}
- \usepackage{tabularx}
- \usepackage{pgfplots}
- \pgfplotsset{compat=1.16}
- \usepackage[makeroom]{cancel}
- \renewcommand{\bibname}{References}
- \usepackage{subcaption}
- \usepackage{wrapfig}
---
# Table 1
\begin{table}[h!]
\centering
\small
\begin{adjustbox}{width=\columnwidth,center}
\begin{tabular}{ccccc}
\hline\hline
Stages & \textit{Financial regimes} & \textit{Preferential target} & \textit{Loan interest rates} & \begin{tabular}{@{}c@{}c@{}}\textit{Inequality} \\ \textit{trends} \\ \textit{(prediction)} \end{tabular} \\ [0.5ex]\hline
Stage I (1960s) &  \begin{tabular}{@{}c@{}c@{}}Repressed\\(Industry-neutral) \end{tabular} & Exporting firms & \begin{tabular}{@{}c@{}c@{}}Preferential rate ($r^{I}$)\\(based on \\export performance) \end{tabular}&$\searrow$?\\[1ex]\hline
\end{tabular}
\end{adjustbox}
\end{table}

图片：

Answer 1

Rmarkdown 似乎无法处理方括号中的可选参数。作为一种解决方法，您可以将整个表格作为真正的乳胶代码。

关于您的代码的其他一些说明：

• 您不需要\usepackage{amsmath} 和\usepackage{xcolor}。 Beamer 已经加载了它们

• babel 包需要知道你想要哪种语言

• 通常也不需要像 caption 这样的包，因为 beamer 有自己的字幕机制等。

• 在没有浮动机制的文件类中使用像 [h!] 这样的浮动说明符是没有意义的

• 您不需要在表格中出现\centering。 beamer 自动居中表格和图形

• 我建议不要缩放包含文本的元素。与\begin{adjustbox}{width=\columnwidth,center}...\end{adjustbox} 相比，选择合适的字体大小会更好，以确保所使用的字母具有与其显示大小相匹配的最佳形状。

---

---
title: "Big Business" 
output: 
  beamer_presentation:
      citation_package: natbib
      theme: "boxes"
header-includes:
- \widowpenalties 1 150
- \usepackage{amsmath}
- \renewcommand{\bibname}{References}
- \usepackage{adjustbox}
- \usepackage{booktabs}
- \usepackage{tikz}
- \usepackage{verbatim}
- \usepackage{chronosys}
- \usepackage{stackengine}
- \usepackage{xcolor}
- \usetikzlibrary{arrows.meta}
- \usetikzlibrary{arrows,decorations.markings}
- \usetikzlibrary{intersections}
- \usepackage[font=small]{caption}
- \usepackage{adjustbox}
- \usepackage{tabularx}
- \usepackage{pgfplots}
- \renewcommand{\bibname}{References}
- \usepackage{subcaption}
- \usepackage{wrapfig}
---
# Table 1
```{=latex}
\begin{table}[h!]
\centering
\small
\begin{adjustbox}{width=\columnwidth,center}
\begin{tabular}{ccccc}
\hline\hline
Stages & \textit{Financial regimes} & \textit{Preferential target} & \textit{Loan interest rates} & \begin{tabular}{@{}c@{}c@{}}\textit{Inequality} \\ \textit{trends} \\ \textit{(prediction)} \end{tabular} \\ [0.5ex]\hline
Stage I (1960s) &  \begin{tabular}{@{}c@{}c@{}}Repressed\\(Industry-neutral) \end{tabular} & Exporting firms & \begin{tabular}{@{}c@{}c@{}}Preferential rate ($r^{I}$)\\(based on \\export performance) \end{tabular}&$\searrow$?\\[1ex]\hline
\end{tabular}
\end{adjustbox}
\end{table}
```

https://rstudio.cloud/project/1203195