附录 A 中有下表。我想让表格适合任何其他常规页面的宽度。如何将特定列行的长内容拆分为 2 行以适合，我还能做什么？这是我的附录表：
\documentclass{article}
\usepackage{booktabs,makecell,tabularx}
\renewcommand\theadfont{\small}
\newcolumntype{L}{>{\raggedright\arraybackslash}X}
\usepackage{siunitx}
\renewcommand{\thetable}{\arabic{table}}
\begin{document}
\section{\\Appendix: One-sample t-test 5\% results of ABCD accuracy vs. accuracy of other JKFG HIJK accuracy} \label{App:AppendixA}
\begin{table}[H]
\centering
\begin{tabular}{||c c c c c ||}
\hline
Dataset & No. of SKLH & ABCD Accuracy & Mean of JKFG Accuracy& T-test\\ [0.5ex]
\hline\hline
Cardiotocography & 1 & 0.999 & 0.999 & - \\
\hline
Cardiotocography & 4 & 0.999 & 0.999 & Not-Rejected \\
\hline
Cardiotocography & 8 & 0.999 & 0.999 & Reject \\
\hline
Cardiotocography & 16 & 0.999 & 0.999 & Not-Rejected \\
\hline
Cardiotocography & 32 & 0.999 & 0.999 & Reject \\
\hline
Cardiotocography & 64 & N/A & N/A & N/A \\
\hline
Wall-Following Robot Navigation & 1 & 0.999 & 0.999 & - \\
\hline
Wall-Following Robot Navigation & 4 & 0.999 & 0.999 & Not-Rejected\\
\hline
Wall-Following Robot Navigation & 8 & 0.999 & 0.999 & Not-Rejected\\
\hline
Wall-Following Robot Navigation & 16 & 0.999 & 0.999 & Not-Rejected\\
\hline
Wall-Following Robot Navigation & 32 & 0.999 & 0.999 & Reject\\
\hline
Wall-Following Robot Navigation & 64 & 0.999 & 0.9996 & Not-Rejected\\
\hline
Spambase & 1 & 0.999 & 0.999 & -\\
\hline
Spambase & 4 & 0.999 & 0.999 & Not-Rejected\\
\hline
Spambase & 8 & 0.999 & 0.999 & Not-Rejected\\
\hline
Spambase & 16 & 0.999 & 0.999 & Reject\\
\hline
Spambase & 32 & 0.999 & 0.999 & Not-Rejected\\
\hline
Spambase & 64 & 0.999 & 0.999 & Not-Rejected\\
\hline
MAGIC Gamma Telescope & 1 & 0.999 & 0.999 & -\\
\hline
MAGIC Gamma Telescope & 4 & 0.999 & 0.999 & Not-Rejected\\
\hline
MAGIC Gamma Telescope & 8 & 0.999 & 0.999 & Reject\\
\hline
MAGIC Gamma Telescope & 16 & 0.999 & 0.999 & Reject\\
\hline
MAGIC Gamma Telescope & 32 & 0.999 & 0.999 & Not-Rejected\\
\hline
MAGIC Gamma Telescope & 64 & 0.999 & 0.999 & Not-Rejected\\
\hline
Letter Recognition & 1 & 0.999 & 0.999 & -\\
\hline
Letter Recognition & 4 & 0.999 & 0.999 & Not-Rejected\\
\hline
Letter Recognition & 8 & 0.999 & 0.999 & Not-Rejected\\
\hline
Letter Recognition & 16 & 0.999 & 0.999 & Not-Rejected\\
\hline
Letter Recognition & 32 & 0.999 & 0.999 & Reject\\
\hline
Letter Recognition & 64 & 0.999 & 0.999 & Reject\\
\hline
MiniBooNE particle identification & 1 & 0.999 & 0.999 & -\\
\hline
MiniBooNE particle identification & 4 & 0.999 & 0.999 & Not-Rejected\\
\hline
MiniBooNE particle identification & 8 & 0.999 & 0.999 & Not-Rejected\\
\hline
MiniBooNE particle identification & 16 & 0.999 & 0.999 & Reject\\
\hline
MiniBooNE particle identification & 32 & 0.999 & 0.999 & Not-Rejected\\
\hline
MiniBooNE particle identification & 64 & 0.999 & 0.999 & Not-Rejected\\
[1ex]\hline
\end{tabular}
\end{table}
\end{document}
答案1
看吧，这就是你想要得到的：
\documentclass{article}
\usepackage{booktabs,makecell}%,tabularx
\renewcommand\theadfont{\small}
% \newcolumntype{L}{>{\raggedright\arraybackslash}X}
\usepackage{siunitx}
% \renewcommand{\thetable}{\arabic{table}}
\begin{document}
\section{Appendix: One-sample t-test 5\% results of ABCD accuracy vs. accuracy of other JKFG HIJK accuracy} \label{App:AppendixA}
\begin{table}
\centering
\begin{tabular}{ c S[table-format=2.0]
S[table-format=1.3]
S[table-format=1.4] c }
\toprule
\thead{Dataset}
& {\thead{Number\\ of SKLH}}
& {\thead{ABCD\\ Accuracy}}
& {\thead{Mean of\\ JKFG Accuracy}}
& \thead{T-test} \\
\midrule
Cardiotocography & 1 & 0.999 & 0.999 & - \\
Cardiotocography & 4 & 0.999 & 0.999 & Not-Rejected \\
Cardiotocography & 8 & 0.999 & 0.999 & Reject \\
\addlinespace
Cardiotocography & 16 & 0.999 & 0.999 & Not-Rejected \\
Cardiotocography & 32 & 0.999 & 0.999 & Reject \\
Cardiotocography & 64 & N/A & N/A & N/A \\
\addlinespace
Wall-Following Robot Navigation & 1 & 0.999 & 0.999 & - \\
Wall-Following Robot Navigation & 4 & 0.999 & 0.999 & Not-Rejected\\
Wall-Following Robot Navigation & 8 & 0.999 & 0.999 & Not-Rejected\\
\addlinespace
Wall-Following Robot Navigation & 16 & 0.999 & 0.999 & Not-Rejected\\
Wall-Following Robot Navigation & 32 & 0.999 & 0.999 & Reject\\
Wall-Following Robot Navigation & 64 & 0.999 & 0.9996 & Not-Rejected\\
\addlinespace
Spambase & 1 & 0.999 & 0.999 & -\\
Spambase & 4 & 0.999 & 0.999 & Not-Rejected\\
Spambase & 8 & 0.999 & 0.999 & Not-Rejected\\
\addlinespace
Spambase & 16 & 0.999 & 0.999 & Reject\\
Spambase & 32 & 0.999 & 0.999 & Not-Rejected\\
Spambase & 64 & 0.999 & 0.999 & Not-Rejected\\
\addlinespace
MAGIC Gamma Telescope & 1 & 0.999 & 0.999 & -\\
MAGIC Gamma Telescope & 4 & 0.999 & 0.999 & Not-Rejected\\
MAGIC Gamma Telescope & 8 & 0.999 & 0.999 & Reject\\
\addlinespace
MAGIC Gamma Telescope & 16 & 0.999 & 0.999 & Reject\\
MAGIC Gamma Telescope & 32 & 0.999 & 0.999 & Not-Rejected\\
MAGIC Gamma Telescope & 64 & 0.999 & 0.999 & Not-Rejected\\
\addlinespace
Letter Recognition & 1 & 0.999 & 0.999 & -\\
Letter Recognition & 4 & 0.999 & 0.999 & Not-Rejected\\
Letter Recognition & 8 & 0.999 & 0.999 & Not-Rejected\\
\addlinespace
Letter Recognition & 16 & 0.999 & 0.999 & Not-Rejected\\
Letter Recognition & 32 & 0.999 & 0.999 & Reject\\
Letter Recognition & 64 & 0.999 & 0.999 & Reject\\
\addlinespace
MiniBooNE particle identification & 1 & 0.999 & 0.999 & -\\
MiniBooNE particle identification & 4 & 0.999 & 0.999 & Not-Rejected\\
MiniBooNE particle identification & 8 & 0.999 & 0.999 & Not-Rejected\\
\addlinespace
MiniBooNE particle identification & 16 & 0.999 & 0.999 & Reject\\
MiniBooNE particle identification & 32 & 0.999 & 0.999 & Not-Rejected\\
MiniBooNE particle identification & 64 & 0.999 & 0.999 & Not-Rejected\\
\bottomrule
\end{tabular}
\end{table}
\end{document}
序言中的注释行对于此表格来说并非必需，但它们并无害。表格太“高”，以至于无法与章节标题放在同一页上（实际上，这对于默认文章布局有效）。
如您所见，我将三列标题分成两行，使此表变窄。我还利用booktabs包的存在重新设计了表格外观。
表格截图：
