对于 IEEE ACCESS 模板，编译时在表代码中遇到错误。错误消息：未定义的控制序列。\sisetup

Question

\documentclass{ieeeaccess}
\usepackage{cite}
\usepackage{amsmath,amssymb,amsfonts}
\usepackage{algorithmic}
\usepackage{graphicx}
\usepackage{textcomp}
\def\BibTeX{{\rm B\kern-.05em{\sc i\kern-.025em b}\kern-.08em
    T\kern-.1667em\lower.7ex\hbox{E}\kern-.125emX}}
\begin{document}


\titlepgskip=-15pt

\maketitle

\section{Introduction}
\begin{table}[ht]
\centering
\caption{Evaluation of the proposed}
\label{tab:Y_Forecast}
    \setlength{\tabcolsep}{0pt}
    \sisetup{round-mode=places,
             round-precision=2,
             table-format=1.2,
             }
\begin{tabula}{\columnwidth}{@{\extracolsep{\fill}}  l  *{4}{S} }
    \toprule
 & \multicolumn{4}{c}{Proposed and benchmark forecast models} \\
    \cmidrule{2-5}
\thead{Months}
        & {\thead{SDPSO-ELM \\ MAPE \\(\%)}}
            & {\thead{F-RBF-CNN\\ MAPE \\(\%)}}
                & {\thead{SSA-SVM-CS\\ MAPE \\(\%)}}
                     & {\thead{FA-HELF \\ MAPE\\(\%)}} \\
\midrule
    Jan & 2.22 & 1.67 & 1.55 & 0.414\\

\midrule
Avg.& 2.12 & 1.79 & 1.44 & 0.410\\
\bottomrule
\end{tabular}
\end{table}

\EOD

\end{document}

Answer 1

您的 MWE 存在许多问题：

• 您尚未定义内容maketitle（就您而言，它不相关，因此将其从 MWE 中删除）
• 你没有加载包booktabs和makcell表格
• 您没有加载siunitx用于S列的包
• \begin{tabula}{\columnwidth}{@{\extracolsep{\fill}} l *{4}{S} }是错误的，正确的是\begin{tabular*}{\columnwidth}{@{\extracolsep{\fill}} l *{4}{S} }，当然表格应该以\end{tabular*}

修正后的 MWE 为：

\documentclass{ieeeaccess}
\usepackage{cite}
\usepackage{amsmath,amssymb,amsfonts}
\usepackage{algorithmic}
\usepackage{graphicx}
\usepackage{textcomp}
\def\BibTeX{{\rm B\kern-.05em{\sc i\kern-.025em b}\kern-.08em
    T\kern-.1667em\lower.7ex\hbox{E}\kern-.125emX}}

\usepackage{booktabs, makecell}
\usepackage{siunitx}  % <---
\begin{document}
\titlepgskip=-15pt
%\maketitle

\section{Introduction}
\begin{table}[ht]
\centering
\caption{Evaluation of the proposed}
\label{tab:Y_Forecast}
    \setlength{\tabcolsep}{0pt}
    \sisetup{round-mode=places,
             round-precision=2,
             table-format=1.2,
             }
\begin{tabular*}{\columnwidth}{@{\extracolsep{\fill}} l *{4}{S} }
    \toprule
 & \multicolumn{4}{c}{Proposed and benchmark forecast models} \\
    \cmidrule{2-5}
\thead{Months}
        & {\thead{SDPSO-ELM \\ MAPE \\(\%)}}
            & {\thead{F-RBF-CNN\\ MAPE \\(\%)}}
                & {\thead{SSA-SVM-CS\\ MAPE \\(\%)}}
                     & {\thead{FA-HELF \\ MAPE\\(\%)}} \\
\midrule
    Jan & 2.22 & 1.67 & 1.55 & 0.414\\

\midrule
Avg.& 2.12 & 1.79 & 1.44 & 0.410\\
\bottomrule
\end{tabular*}
\end{table}

\EOD

\end{document}