我正在制作一个多列表格。但是有些表格超出了纸张边距，我认为这是由于列之间的空白造成的。请问我该如何解决这个问题？
代码如下。
\documentclass[journal]{IEEEtran}
\bibliographystyle{IEEEtran}
% *** CITATION PACKAGES ***
\usepackage{cite}
\usepackage{makecell}
\newcolumntype{P}[1]{>{\centering\arraybackslash}p{#1}}
\newcolumntype{M}[1]{>{\centering\arraybackslash}m{#1}}
\usepackage{floatrow}
\floatsetup[table]{capposition=top}
\usepackage{booktabs,siunitx} \sisetup{table-format=2.1}
\newcommand{\splitcell}[1]{%
\begin{tabular}{@{}c@{}}\strut#1\strut\end{tabular}%
}
\begin{document}
\begin{table*}
\caption{Some caption}
\scriptsize
\centering
\begin{tabular}{
S[table-format=0.0]
S[table-format=0.0]
S[table-format=0.0]
S[table-format=0.1]
%%%% Overal metrics
S[table-format=2.2]
S[table-format=2.2]
S[table-format=2.2]
S[table-format=2.2]
S[table-format=2.2]
S[table-format=2.2]
S[table-format=2.2]
S[table-format=2.2]
S[table-format=2.2]
S[table-format=2.2]
%%
S[table-format=2.2]
S[table-format=2.2]
S[table-format=2.2]
S[table-format=2.2]
S[table-format=2.2]
}
\toprule
% & \multicolumn{8}{c}{\bfseries Emissions} \\
% \cmidrule(lr){2-9}
\multicolumn{1}{c}{Study}
&\multicolumn{1}{c}{Method}
&\multicolumn{1}{c}{\makecell[tl]{Num. of\\ subjects}}
&\multicolumn{1}{c}{Dataset}
& \multicolumn{5}{c}{Overall metrics}
& \multicolumn{5}{c}{Class-wise sensitivity}
& \multicolumn{5}{c}{Class-wise sensitivity} \\
\cmidrule(lr){5-9}\cmidrule(lr){10-14}\cmidrule(lr){15-19}
&&&
& {Acc.}
& {$\kappa$}
& {MF1}
& {Sens.}
& {Spec.}
%%% Class-wise sensitivity
& {W}
& {N1}
& {N2}
& {N3}
& {REM}
%%% Class-wise selectivity
& {W}
& {N1}
& {N2}
& {N3}
& {REM}\\
\midrule
\cite{Mendonca2019} & {ARNN +RNN} & {90}& {test} & 98.00 & 98.00 & 98.00 & 98.00& 98.00 & 98.00 & 98.00 & 98.00 & 98.00& 98.00 &98.00 & 98.00 & 98.00 &{--} & 98.00 \\
\cite{Mendonca2019} & {ABC} & {90}& {test} & 98.00 & 98.00 & 98.00 & 98.00& 98.00 & 98.00 & 98.00 & 98.00 & 98.00& 98.00 &98.00 & 98.00 & 98.00 &98.00 & 98.00 \\
\cite{Mendonca2019} & {ABC} & {90}& {test} & 98.00 & 98.00 & 98.00 & {--} & {--} & 98.00 & 98.00 & 98.00 & 98.00& 98.00 &98.00 & 98.00 & 98.00 &98.00 & 98.00 \\
\bottomrule
\end{tabular}
\end{table*}
\end{document}
答案1
将值设置\tabcolsep为 3.5pt 即可。
我擅自简化了代码（我不明白为什么前 4 列有 类型S，所以我用 替换了它们c）。另外，我认为用 来设置它们的列头看起来更好 multirow。
\documentclass[journal]{IEEEtran}
\bibliographystyle{IEEEtran}
% *** CITATION PACKAGES ***
\usepackage{cite}
\usepackage{multirow, makecell}
\newcolumntype{P}[1]{>{\centering\arraybackslash}p{#1}}
\newcolumntype{M}[1]{>{\centering\arraybackslash}m{#1}}
\usepackage{floatrow}
\floatsetup[table]{capposition=top}
\usepackage{booktabs,siunitx} \sisetup{table-format=2.1}
\newcommand{\splitcell}[1]{%
\begin{tabular}{@{}c@{}}\strut#1\strut\end{tabular}%
}
\begin{document}
\begin{table*}
\setlength{\tabcolsep}{3.5pt}
\caption{Some caption}
\scriptsize
\centering
\begin{tabular}{
*{4}{c}
%%%% Overal metrics
*{15}{S[table-format=2.2]}
}
\toprule
% & \multicolumn{8}{c}{\bfseries Emissions} \\
% \cmidrule(lr){2-9}
\multirow{2.5}{*}{Study}
& \multirow{2.5}{*}{Method}
& \multirowcell{2.5}{Num. of\\ subjects}
& \multirow{2.5}{*}{Dataset}
& \multicolumn{5}{c}{Overall metrics}
& \multicolumn{5}{c}{Class-wise sensitivity}
& \multicolumn{5}{c}{Class-wise sensitivity} \\
\cmidrule(lr){5-9}\cmidrule(lr){10-14}\cmidrule(lr){15-19}
&&&
& {Acc.}
& {$\kappa$}
& {MF1}
& {Sens.}
& {Spec.}
%%% Class-wise sensitivity
& {W}
& {N1}
& {N2}
& {N3}
& {REM}
%%% Class-wise selectivity
& {W}
& {N1}
& {N2}
& {N3}
& {REM}\\
\midrule
\cite{Mendonca2019} & ARNN +RNN & 90 & test & 98.00 & 98.00 & 98.00 & 98.00& 98.00 & 98.00 & 98.00 & 98.00 & 98.00& 98.00 &98.00 & 98.00 & 98.00 &{--} & 98.00 \\
\cite{Mendonca2019} & ABC & 90 & test & 98.00 & 98.00 & 98.00 & 98.00& 98.00 & 98.00 & 98.00 & 98.00 & 98.00& 98.00 &98.00 & 98.00 & 98.00 &98.00 & 98.00 \\
\cite{Mendonca2019} & ABC & 90& test & 98.00 & 98.00 & 98.00 & {--} & {--} & 98.00 & 98.00 & 98.00 & 98.00& 98.00 &98.00 & 98.00 & 98.00 &98.00 & 98.00 \\
\bottomrule
\end{tabular}
\end{table*}
\end{document}
