如何解决 \headrow 错误？

Question

\headrow无法正常工作并在 Overleaf 上出现错误：

The compiler is having trouble understanding a command you have used. Check that the command is spelled correctly. If the command is part of a package, make sure you have included the package in your preamble using \usepackage{...}.

甚至我也使用\usepackage{threeparttable}

如何解决？

\begin{table}[bt]
\centering
\caption{Toy Students Dataset}
  \label{owakey}
\begin{threeparttable}
\begin{tabular}{lccc}
\headrow
t & FirstName & LastName & HasFriend \\
student\_1&&&\\
    student\_2&&&---\\
    student\_3& &&\\ 
\hiderowcolors

\hline  % Please only put a hline at the end of the table
\end{tabular}
\end{threeparttable}
\end{table}

和\documentclass[12pt]{memoireuqam1.3ang}

Answer 1

该命令\headrow在 Overleaf 开发的自定义类中定义，称为wiley-article.cls（参见将代码从 Overleaf 复制/粘贴到 LaTeX？）。那里的定义是\newcommand{\headrow}{\rowcolor{black!20}}，符合您对“替代行颜色”的描述。命令\rowcolor本身由包提供colortbl，可以使用加载\usepackage[table]{xcolor}。加载xcolor还允许使用颜色规范，如black!20（20％黑色）。

梅威瑟：

\documentclass{memoir}
\usepackage{threeparttable}
\usepackage[table]{xcolor}
\newcommand{\headrow}{\rowcolor{black!20}}
\begin{document}
\begin{table}[bt]
\centering
\caption{Toy Students Dataset}
  \label{owakey}
\begin{threeparttable}
\begin{tabular}{lccc}
\headrow
t & FirstName & LastName & HasFriend \\
student\_1&&&\\
    student\_2&&&---\\
    student\_3& &&\\ 
\hiderowcolors

\hline  % Please only put a hline at the end of the table
\end{tabular}
\end{threeparttable}
\end{table}
\end{document}

结果：