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如何将数字放入长表中

tag-icon • tag-icon floats longtable
如何将数字放入长表中

下面是我试图将数字放入的代码longtable。我想知道如何减少数字（列）之间的间距以及如何将数字拉伸到两个边距？

\documentclass[letter]{article}
\usepackage{graphicx}
\usepackage{longtable}
\usepackage{ltcaption}
\usepackage{duckuments}% for variety
\usepackage[showframe]{geometry}

\begin{document}

\noindent\rule{\textwidth}{20\baselineskip}

\renewcommand{\LTcaptype}{figure}%
\begin{longtable}{@{}ccc@{}}
  \caption{Empirical Regularities During Currency Crises \label{fig: cc}}
\endhead
\includegraphics[width=.31\textwidth]{example-image-duck} & 
\includegraphics[width=.31\textwidth]{example-image-duck} & 
\includegraphics[width=.31\textwidth]{example-image-duck}\\
%
\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} \\
%
\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} \\
%
\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} \\
%
\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} \\
\end{longtable}

\end{document}

答案1

我建议定义您自己的环境，以免在文档中充斥着本应是本地的指令。

\documentclass{article}
\usepackage{graphicx}
\usepackage{longtable}
\usepackage{ltcaption}
\usepackage{duckuments}% for variety

\usepackage[pass,showframe]{geometry}

\newenvironment{longfigure}[2][]{%
  % #1 (optional) is arbitrary code to be executed before the longtable
  % #2 is the column specification
  \renewcommand{\LTcaptype}{figure}%
  \setlength{\LTleft}{0pt}%
  #1%
  \begin{longtable}{#2}
}{\end{longtable}\addtocounter{figure}{-1}}

\begin{document}

\noindent\rule{6pt}{20\baselineskip}

\begin{longfigure}[\setlength{\tabcolsep}{0.01\textwidth}]{@{}ccc@{}}
  \caption{Empirical Regularities During Currency Crises \label{fig:cc}}
\endfirsthead
  \caption*{Empirical Regularities During Currency Crises (continued)}
\endhead
\includegraphics[width=0.32\textwidth]{example-image-duck} & 
\includegraphics[width=0.32\textwidth]{example-image-duck} & 
\includegraphics[width=0.32\textwidth]{example-image-duck}\\
%
\includegraphics[width=0.32\textwidth]{example-image-duck} &
\includegraphics[width=0.32\textwidth]{example-image-duck} &
\includegraphics[width=0.32\textwidth]{example-image-duck} \\
%
\includegraphics[width=0.32\textwidth]{example-image-duck} &
\includegraphics[width=0.32\textwidth]{example-image-duck} &
\includegraphics[width=0.32\textwidth]{example-image-duck} \\
%
\includegraphics[width=0.32\textwidth]{example-image-duck} &
\includegraphics[width=0.32\textwidth]{example-image-duck} &
\includegraphics[width=0.32\textwidth]{example-image-duck} \\
%
\includegraphics[width=0.32\textwidth]{example-image-duck} &
\includegraphics[width=0.32\textwidth]{example-image-duck} &
\includegraphics[width=0.32\textwidth]{example-image-duck} \\
\end{longfigure}

\end{document}

的神奇因素0.01来自\tabcolsep于我们有三列，每列占 的 32% \textwidth，所以我们需要将剩余的空间分成四部分。

在此处输入图片描述

使用的修改subfigure：

\documentclass{article}
\usepackage{graphicx}
\usepackage{longtable}
\usepackage{ltcaption}
\usepackage{duckuments}% for variety
\usepackage{subcaption}

\usepackage[pass,showframe]{geometry}

\newenvironment{longfigure}[2][]{%
  % #1 (optional) is arbitrary code to be executed before the longtable
  % #2 is the column specification
  \renewcommand{\LTcaptype}{figure}%
  \expandafter\def\csname @captype\endcsname{figure}%
  \setcounter{subfigure}{0}%
  \setlength{\LTleft}{0pt}%
  #1%
  \begin{longtable}{#2}
}{\end{longtable}\addtocounter{figure}{-1}}

\begin{document}

\noindent\rule{6pt}{20\baselineskip}

\begin{longfigure}[\setlength{\tabcolsep}{0.01\textwidth}]{@{}ccc@{}}
  \caption{Empirical Regularities During Currency Crises \label{fig:cc}}
\endfirsthead
  \caption*{Empirical Regularities During Currency Crises (continued)}
\endhead
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} \\
%
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} \\
%
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} \\
%
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} \\
%
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} \\
%
\end{longfigure}

\end{document}

在此处输入图片描述

由于芭芭拉·比顿 (barbara beeton) 评论了尴尬的间距，这里有一个解决方法。

\documentclass{article}
\usepackage{graphicx}
\usepackage{longtable}
\usepackage{ltcaption}
\usepackage{duckuments}% for variety
\usepackage{subcaption}

\usepackage[pass,showframe]{geometry}

\newenvironment{longfigure}[2][]{%
  % #1 (optional) is arbitrary code to be executed before the longtable
  % #2 is the column specification
  \renewcommand{\LTcaptype}{figure}%
  \expandafter\def\csname @captype\endcsname{figure}%
  \setcounter{subfigure}{0}%
  \setlength{\LTleft}{0pt}%
  #1%
  \begin{longtable}{#2}
}{\end{longtable}\addtocounter{figure}{-1}}

\begin{document}

\noindent\rule{6pt}{20\baselineskip}

\begin{longfigure}[{%
  \AtEndEnvironment{subfigure}{\vspace{4pt}}%
  \captionsetup[subfigure]{aboveskip=1pt}%
  \setlength{\tabcolsep}{0.01\textwidth}%
}]{@{}ccc@{}}
  \caption{Empirical Regularities During Currency Crises \label{fig:cc}}
\endfirsthead
  \caption*{Empirical Regularities During Currency Crises (continued)}
\endhead
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} \\
%
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} \\
%
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} \\
%
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} \\
%
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} &
\begin{subfigure}{0.32\textwidth}
\includegraphics[width=\textwidth]{example-image-duck}
\caption{A subfigure}
\end{subfigure} \\
%
\end{longfigure}

\end{document}

在此处输入图片描述

答案2

通过使用tabullarray包：

\documentclass[letter]{article}
\usepackage{graphicx}
\usepackage{tabularray}
\usepackage{duckuments}% for variety
\usepackage[showframe]{geometry}

\usepackage{lipsum}

\begin{document}
\lipsum[1-2]

\begingroup
\setkeys{Gin}{width=\linewidth}
\begin{longtblr}[
caption = {My caption},
  label = {my-label}
                 ]{colspec={@{} XXX @{}}}

\includegraphics{example-image-duck} &
\includegraphics{example-image-duck} &
\includegraphics{example-image-duck}\\
%
\includegraphics{example-image-duck} &
\includegraphics{example-image-duck} &
\includegraphics{example-image-duck} \\
%
\includegraphics{example-image-duck} &
\includegraphics{example-image-duck} &
\includegraphics{example-image-duck} \\
%
\includegraphics{example-image-duck} &
\includegraphics{example-image-duck} &
\includegraphics{example-image-duck} \\
%
\includegraphics{example-image-duck} &
\includegraphics{example-image-duck} &
\includegraphics{example-image-duck} \\
\end{longtblr}
\endgroup
\end{document}

在此处输入图片描述

附录： 关于 OP 评论，在 中longtable，longtblr在非figure浮动环境中，向插入的图像添加子标题并不是直接的（据我所知，\captionof子图环境的宏不存在；如果有人否认我会很高兴），所以下面建议使用肮脏的技巧，通过命令在本地组中longtablr模拟子标题编号\captionup{figure}{...}。代码应该是不言自明的。

\documentclass{article}

\usepackage{graphicx}
\usepackage[skip=1ex, font=small, labelfont=bf]{caption}

\usepackage{tabularray}
\UseTblrLibrary{counter,varwidth}   % <===

\begin{document}
\begingroup
    \captionsetup[figure]{aboveskip=-2ex, belowskip=1ex, name=}
    \renewcommand\thefigure{(\alph{figure})}
\setkeys{Gin}{width=\linewidth}
\begin{longtblr}[
caption = {Mylong table width images},
  label = {my-label}
                 ]{colspec = {@{} XXX @{}},
                   measure = vbox,
                    rowsep = 0pt,
                   }        
% table body
\includegraphics{example-image-duck}    &
\includegraphics{example-image-duck}    &
\includegraphics{example-image-duck}    \\
    \captionof{subfigure}{Sub figure A}\label{subfig:a}    &
    \captionof{figure}{Sub figure B}\label{subfig:b}    &
    \captionof{figure}{Sub figure C}\label{subfig:c}    \\ 
\includegraphics{example-image-duck}    &
\includegraphics{example-image-duck}    &
\includegraphics{example-image-duck}    \\
    \captionof{figure}{Sub figure D}\label{subfig:d}    &
    \captionof{figure}{Sub figure E}\label{subfig:e}    &
    \captionof{figure}{Sub figure F}\label{subfig:f}
\end{longtblr}
\setcounter{figure}{1} % so far set manually, for correct numbering of the next figure
\endgroup

\begin{figure}[ht]\centering
    \includegraphics[width=0.5\linewidth]{example-image}
\caption{Next figure}
\label{fig:2}
\end{figure}

See sub-figures \ref{subfig:a}, \ref{subfig:f} in figure \ref{my-label} and figure \ref{fig:2}
\end{document}

在此处输入图片描述

答案3

以下代码确保longtable环境中的材料占据文本块的整个宽度。

在此处输入图片描述

\documentclass[letter]{article}
\usepackage{graphicx}
\usepackage{longtable}
\usepackage{ltcaption}  % for \LTcaptype macro
\usepackage{duckuments} % for variety
\usepackage{geometry}

\begin{document}

\hrule % just to illustrate width of textblock

\begingroup % localize scope of the next few instructions
\setlength\tabcolsep{0pt}
\setlength\LTleft{0pt}
\setlength\LTright{0pt}
\renewcommand{\LTcaptype}{figure}

\begin{longtable}{@{\extracolsep{\fill}} lcr } % make table occupy full width

\caption{Empirical regularities during currency crises} 
\label{fig:cc}\\
\endhead

\includegraphics[width=.31\textwidth]{example-image-duck} & 
\includegraphics[width=.31\textwidth]{example-image-duck} & 
\includegraphics[width=.31\textwidth]{example-image-duck} \\

\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} \\

\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} \\

\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} \\

\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} &
\includegraphics[width=.3\textwidth]{example-image-duck} \\
\end{longtable}
\endgroup

\end{document}

附录回答 OP 的后续问题，“是否可以为每个图额外添加 [a] 子标题？”——简短回答：“是”。稍长的回答：您需要将每个图封装在一个subfigure环境中并提供合适的\caption指令（并加载subcaption包）。此时，继续使用包的机制可能没有什么意义longtable；相反，只需将子图嵌入普通figure环境中并通过指令将它们水平分离即可\hfill。

以下截图分别显示了第一页的前两行和第二页的子图的最后两行。观察代码加载包alphalph并运行

\renewcommand\thesubfigure{\alphalph{\value{subfigure}}}

为了切换到子图的“扩展字母”编号。

在此处输入图片描述

...

在此处输入图片描述

\documentclass{article}
\usepackage{graphicx}
\usepackage{duckuments}
\usepackage[letterpaper]{geometry}
\usepackage{subcaption} % <-- for 'subfigure' environment
\usepackage{alphalph} % extended alphabetical 'numbering'
\renewcommand\thesubfigure{\alphalph{\value{subfigure}}}
\begin{document}


\begin{figure}[p!]  % 1st full page of subfigures
\setkeys{Gin}{width=\linewidth}
\caption{Empirical regularities during currency crises} 
\label{fig:cc}

\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} 
\end{subfigure}\hfill 
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} \end{subfigure}\hfill 
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} 
\end{subfigure} 

\medskip
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} 
\end{subfigure}\hfill
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} \end{subfigure}\hfill
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} 
\end{subfigure} 

\medskip
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} 
\end{subfigure}\hfill
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} \end{subfigure}\hfill
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck}
\end{subfigure} 

\medskip
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} 
\end{subfigure}\hfill
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} \end{subfigure}\hfill
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} 
\end{subfigure} 

\medskip
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} 
\end{subfigure}\hfill
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} \end{subfigure}\hfill
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} 
\end{subfigure} 

\end{figure}



\begin{figure}[p!] % 2nd full page of subfigures
\setkeys{Gin}{width=\linewidth}
\ContinuedFloat
\caption{Empirical regularities during currency crises, continued} 
\label{fig:cc}

\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} \label{duck:a}
\end{subfigure}\hfill 
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} \end{subfigure}\hfill 
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} 
\end{subfigure} 

\medskip
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} 
\end{subfigure}\hfill
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} \end{subfigure}\hfill
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} \label{duck:f}
\end{subfigure} 

\medskip
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} 
\end{subfigure}\hfill
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} \end{subfigure}\hfill
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck}
\end{subfigure} 

\medskip
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} 
\end{subfigure}\hfill
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} \end{subfigure}\hfill
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} 
\end{subfigure} 

\medskip
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} 
\end{subfigure}\hfill
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} \end{subfigure}\hfill
\begin{subfigure}{0.31\textwidth} 
\includegraphics{example-image-duck} 
\caption{A duck} 
\end{subfigure} 

\end{figure}

\end{document}

答案4

以下基于xltabular而不是的代码longtable可以作为起点。图像之间的水平间距可以通过更改 的值来调整\tabcolsep。

\documentclass[letter]{article}
\usepackage{graphicx}
\usepackage{xltabular}
\usepackage{ltcaption}
\usepackage{duckuments}% for variety
\usepackage[showframe]{geometry}

\begin{document}

\noindent\rule{\textwidth}{20\baselineskip}

\renewcommand{\LTcaptype}{figure}%
{\setlength{\tabcolsep}{2pt}
\begin{xltabular}{\linewidth}{@{}XXX@{}}
  \caption{Empirical Regularities During Currency Crises \label{fig: cc}}
\endhead
\includegraphics[width=\linewidth]{example-image-duck} & 
\includegraphics[width=\linewidth]{example-image-duck} & 
\includegraphics[width=\linewidth]{example-image-duck}\\
%
\includegraphics[width=\linewidth]{example-image-duck} &
\includegraphics[width=\linewidth]{example-image-duck} &
\includegraphics[width=\linewidth]{example-image-duck} \\
%
\includegraphics[width=\linewidth]{example-image-duck} &
\includegraphics[width=\linewidth]{example-image-duck} &
\includegraphics[width=\linewidth]{example-image-duck} \\
%
\includegraphics[width=\linewidth]{example-image-duck} &
\includegraphics[width=\linewidth]{example-image-duck} &
\includegraphics[width=\linewidth]{example-image-duck} \\
%
\includegraphics[width=\linewidth]{example-image-duck} &
\includegraphics[width=\linewidth]{example-image-duck} &
\includegraphics[width=\linewidth]{example-image-duck} \\
\end{xltabular}}

\end{document}

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