Latex 弹出错误“！在文档类别 Elsevier {cas-sc} 中的表中插入了 \endgroup。我该如何解决这个问题？

Question

\documentclass[a4paper,fleqn]{cas-sc}
%\usepackage{float}
%\usepackage{flafter}

\newlength\bibsep % ??

\newcommand\theadb[1]{\multicolumn{1}{c}{\bfseries #1}}
\usepackage{booktabs,siunitx}

\begin{document}
\begin{table*}%[!htbp]
\centering
\caption{The 95\% prediction interval nominal.}
\label{tab:CI}
\begin{tabular}{@{} l *{16}{c} @{}}
    \toprule
 Hours &
 \multicolumn{8}{c}{US utility GEFCOM-2012} &
 \multicolumn{8}{c@{}}{ISO-NE control area} \\
  \cmidrule(lr){2-9} \cmidrule(l){10-17}
 &
  \multicolumn{2}{c}{ANN} &
 \multicolumn{2}{c}{LSTM} &
 \multicolumn{2}{c}{CRBM} &
 \multicolumn{2}{c}{FCDBN} &
   \multicolumn{2}{c}{ANN} &
 \multicolumn{2}{c}{LSTM} &
 \multicolumn{2}{c}{CRBM} &
 \multicolumn{2}{c@{}}{FCDBN} \\
 \cmidrule(lr){2-3} \cmidrule(l){4-5} \cmidrule(l){6-7} \cmidrule(l){8-9} \cmidrule(l){10-11} \cmidrule(l){12-13} \cmidrule(l){14-15} \cmidrule(l){16-17}
    & \theadb{Lower\\ bound} & \theadb{Upper\\ bound} & \theadb{Lower\\ bound} & \theadb{Upper\\ bound} & \theadb{Lower\\ bound} & \theadb{Upper\\ bound} & \theadb{Lower\\ bound} & \theadb{Upper\\ bound} & \theadb{Lower\\ bound} & \theadb{Upper\\ bound} & \theadb{Lower\\ bound} & \theadb{Upper\\ bound} & \theadb{Lower\\ bound} & \theadb{Upper\\ bound} & \theadb{Lower\\ bound} & \theadb{Upper\\ bound} \\
\midrule
 01&4.4&6.0 &3.2  &3.9  &3.0  &3.9  &1.9  &2.5 &4.5&6.4 &3.1  &3.7  &3.1 &3.9  &1.7  &2.4 \\
 02&4.6&6.1 &4.5  &5.1  &4.1  &4.5  &1.6  &1.9 &4.3&6.5 &4.3  &5.2  &4.3  &4.5  &1.5  &1.8\\
\bottomrule
\end{tabular}
\end{table*}
\end{document}

Answer 1

我建议

 \newcommand\theadb[1]{\multicolumn{1}{c}{\bfseries #1}}

在之前的答案中，它符合您给出的示例，但c列是单行。

这里使用多行输入，因此使用类似

\newcommand\theadb[1]{%
  \multicolumn{1}{c}{\bfseries\begin{tabular}{@{}c@{}} #1\end{tabular}}}

因此该单元格是一个嵌套的表格，并将\\按您的预期工作。