如何使子表格内的标题左对齐？

Question

我有以下代码：

\documentclass[letterpaper,12pt]{article}

% things needed to include figures
\usepackage{subfigure, graphicx}
% float must be included for the [H] to actually work
\usepackage{float}
% formulas
\usepackage{amsmath}
% Added to adjust captions
\usepackage[singlelinecheck=false]{caption}
% added to adjust margins at the suggestion of Dr. Matt
\usepackage[top=1in, bottom=1in, left=1in, right=1in]{geometry}
\usepackage{fullpage}

\begin{document}
% 2 column side by side table
\begin{table}[H]
  \subtable[Half-life for $^{108}$Ag] {%

    % -----------------------------------------------------%
    \begin{tabular}{c@{\hskip 1cm} c}
      \hline\noalign{\smallskip}
      Accepted $T_{1/2}$ & Experimental $T_{1/2}$\\
      (s) & (s)\\
      \hline\noalign{\smallskip}
      142.92 & 158 $\pm$ 7\\
      \hline\noalign{\smallskip}
    \end{tabular}
    \label{lefttable}
    % -----------------------------------------------------%

  }
  \subtable[Half-life for $^{110}$Ag] {%

    % -----------------------------------------------------%
    \begin{tabular}{c@{\hskip 1cm} c}
      \hline\noalign{\smallskip}
      Accepted $T_{1/2}$ & Experimental $T_{1/2}$\\
      (s) & (s)\\
      \hline\noalign{\smallskip}
      24.6 & 21 $\pm$ 2\\
      \hline\noalign{\smallskip}
    \end{tabular}
    \label{righttable}
    % -----------------------------------------------------%

  }
  \caption{2 Column tables side by side}
  \label{sidebysidetable}
\end{table}
\end{document}

得出的结果如下：

我想让标题左对齐。我该怎么做？

Answer 1

对于你的问题：

subcaption包支持caption包并使用其\captionsetup接口。

    \usepackage{caption}
      \captionsetup[table]{justification=raggedright}
      \captionsetup[subtable]{justification=raggedright}

其中raggedright左对齐。

在问题中subfigure 和 subfig 包已弃用，subcaption被推荐。

\usepackage{subcaption}

代替subfigure。

我改变了你的子表环境风格：

\begin{table}[H]
  \begin{subtable}[b]{0.48\textwidth}
    % -----------------------------------------------------%
    \caption{Half-life for $^{108}$Ag} \label{lefttable}
    \begin{tabular}{c@{\hskip 1cm} c}
      \hline\noalign{\smallskip}
      Accepted $T_{1/2}$ & Experimental $T_{1/2}$\\
      (s) & (s)\\
      \hline\noalign{\smallskip}
      142.92 & 158 $\pm$ 7\\
      \hline\noalign{\smallskip}
    \end{tabular}
    % -----------------------------------------------------%  
  \end{subtable}
  \begin{subtable}[b]{0.48\textwidth}
    % -----------------------------------------------------%
    \caption{Half-life for $^{110}$Ag}     \label{righttable}
    \begin{tabular}{c@{\hskip 1cm} c}
      \hline\noalign{\smallskip}
      Accepted $T_{1/2}$ & Experimental $T_{1/2}$\\
      (s) & (s)\\
      \hline\noalign{\smallskip}
      24.6 & 21 $\pm$ 2\\
      \hline\noalign{\smallskip}
    \end{tabular}
    % -----------------------------------------------------%
  \end{subtable}
  \caption{2 Column tables side by side}
  \label{sidebysidetable}
\end{table}

输出是

注意，总宽度（左表 + 右表）应小于\textwidth。并且 中的选项[b]是该子表的垂直位置。对于您来说，相同高度的表格不会产生b任何t差异。

Answer 2

在子标题中使用\hspace*{\fill}，例如

\caption{This table. \hspace*{\fill}}

对我来说很管用。以下是基于其他帖子的工作示例（请参阅内联注释以了解 的使用\hspace）：

\documentclass[letterpaper,12pt]{article}
\usepackage{caption, subcaption}
\usepackage[top=1in, bottom=1in, left=1in, right=1in]{geometry}

\begin{document}

\begin{table}[H]
  \begin{subtable}[b]{0.48\textwidth}
    \caption{Half-life for $^{108}$Ag \hspace*{\fill}} %NOTE 
    \begin{tabular}{c@{\hskip 1cm} c}
      \hline\noalign{\smallskip}
      Accepted $T_{1/2}$ & Experimental $T_{1/2}$\\
      (s) & (s)\\
      \hline\noalign{\smallskip}
      142.92 & 158 $\pm$ 7\\
      \hline\noalign{\smallskip}
    \end{tabular}
  \end{subtable}
  \begin{subtable}[b]{0.48\textwidth}
    \caption{Half-life for $^{110}$Ag \hspace*{\fill}} %NOTE
    \begin{tabular}{c@{\hskip 1cm} c}
      \hline\noalign{\smallskip}
      Accepted $T_{1/2}$ & Experimental $T_{1/2}$\\
      (s) & (s)\\
      \hline\noalign{\smallskip}
      24.6 & 21 $\pm$ 2\\
      \hline\noalign{\smallskip}
    \end{tabular}
  \end{subtable}
  \caption{2 Column tables side by side}
\end{table}

\end{document}