子表的标题分成几行

Question

我对 Latex 还很陌生，我有一个（至少对你来说）可能相当简单的问题，但经过一番研究，我没有找到任何对我有帮助的东西。我想做一个带有某些子表的表格，但是我的子表标题分成了几行。我更喜欢表格上方只有一行，其他位置都可以。

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{lscape}
\usepackage{subcaption}

\begin{document}

\begin{landscape}

\begin{table}[h]
\caption{Effects}
\begin{subtable}
\small
\caption{A subtable}
\label{tab:1a}
\begin{tabular}{l*{16}{c}}
\hline\hline
&\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}&\multicolumn{1}{c}{(5)}&\multicolumn{1}{c}{(6)}&\multicolumn{1}{c}{(7)}&\multicolumn{1}{c}{(8)}&\multicolumn{1}{c}{(9)}&\multicolumn{1}{c}{(10)}&\multicolumn{1}{c}{(11)}&\multicolumn{1}{c}{(12)}&\multicolumn{1}{c}{(13)}&\multicolumn{1}{c}{(14)}&\multicolumn{1}{c}{(15)}\\
\hline
\# months    &       0.192\sym{*}  &       0.139         &       0.190\sym{*}  &       0.168         &      -0.019         &       0.070         &       0.065         &       0.139\sym{*}  &       0.185         &       0.072         &       0.018         &       0.047         &      -0.088         &       0.000         &     -17.812                 \\
            &      (1.65)         &      (1.28)         &      (1.71)         &      (1.13)         &     (-0.17)         &      (0.94)         &      (0.48)         &      (1.78)         &      (1.26)         &      (0.70)         &      (0.21)         &      (0.26)         &     (-0.86)         &         (.)         &     (-1.03)                \\
[1em]
\# quartals  &       0.557         &       0.406         &       0.525         &       0.485         &      -0.068         &       0.227         &       0.175         &       0.437\sym{*}  &       0.539         &       0.206         &       0.063         &       0.107         &      -0.244         &       0.000         &     -55.164             \\
            &      (1.63)         &      (1.25)         &      (1.58)         &      (1.09)         &     (-0.20)         &      (1.02)         &      (0.43)         &      (1.87)         &      (1.23)         &      (0.69)         &      (0.24)         &      (0.19)         &     (-0.80)         &         (.)         &     (-1.03)                \\
[1em]
\# years     &       2.508\sym{*}  &       1.999         &       2.282\sym{*}  &       2.556         &      -0.405         &       0.951         &       1.366         &       1.750\sym{*}  &       1.923         &       1.004         &       0.573         &       0.756         &      -1.194         &       0.000         &    -234.503              \\
            &      (1.85)         &      (1.54)         &      (1.68)         &      (1.45)         &     (-0.31)         &      (1.12)         &      (0.86)         &      (1.87)         &      (1.09)         &      (0.87)         &      (0.54)         &      (0.35)         &     (-0.95)         &         (.)         &     (-1.04)               \\
\hline\hline
\end{tabular}
\end{subtable}

\hfill

\begin{subtable}
\centering
\small
\caption{A subtable}\label{tab:1b}
\begin{tabular}{l*{16}{c}}
\hline\hline
            &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}&\multicolumn{1}{c}{(5)}&\multicolumn{1}{c}{(6)}&\multicolumn{1}{c}{(7)}&\multicolumn{1}{c}{(8)}&\multicolumn{1}{c}{(9)}&\multicolumn{1}{c}{(10)}&\multicolumn{1}{c}{(11)}&\multicolumn{1}{c}{(12)}&\multicolumn{1}{c}{(13)}&\multicolumn{1}{c}{(14)}&\multicolumn{1}{c}{(15)}\\
\hline
\# months    &       0.396\sym{*}  &      -0.017         &       0.008         &       0.197         &       0.056         &       0.032         &       0.202         &       0.131         &       0.461\sym{*}  &       0.174         &       0.299         &      -0.310         &       0.283         &       0.000         &       0.398\sym{*}       \\
            &      (1.83)         &     (-0.52)         &      (0.03)         &      (0.97)         &      (0.78)         &      (0.71)         &      (1.47)         &      (0.79)         &      (1.74)         &      (1.29)         &      (1.34)         &     (-1.15)         &      (1.06)         &         (.)         &      (1.78)               \\
[1em]
\# quartals  &       1.178\sym{*}  &      -0.057         &       0.018         &       0.593         &       0.172         &       0.098         &       0.610         &       0.400         &       1.329\sym{*}  &       0.490         &       0.918         &      -0.985         &       0.862         &       0.000         &       1.156\sym{*}          \\
            &      (1.82)         &     (-0.58)         &      (0.02)         &      (0.98)         &      (0.80)         &      (0.72)         &      (1.49)         &      (0.80)         &      (1.68)         &      (1.25)         &      (1.39)         &     (-1.22)         &      (1.08)         &         (.)         &      (1.78)             \\
[1em]
\# years     &       4.416\sym{*}  &      -0.317         &      -0.509         &       0.981         &       0.399         &       0.318         &       1.595         &       1.341         &       4.897         &       2.038         &       4.193         &      -4.298         &       3.354         &       0.000         &       4.519               \\
            &      (1.71)         &     (-0.83)         &     (-0.18)         &      (0.41)         &      (0.46)         &      (0.67)         &      (0.96)         &      (0.70)         &      (1.55)         &      (1.37)         &      (1.59)         &     (-1.36)         &      (1.04)         &         (.)         &      (1.64)               \\
\hline\hline
\end{tabular}
\end{subtable}
\end{table}

\end{landscape}

\end{document}

Answer 1

在尝试编译文档时，您应该会收到一堆错误消息。收到错误消息后，请不要查看生成的 pdf 文件，而是先尝试修复错误。

您收到的第一条错误消息是

Missing number, treated as zero.

这是因为您忘记了参数\begin{subtable}{<width>}。例如，您可以使用\begin{subtable}{\linewidth}。

此外，\sym目前尚未定义。我猜，你的序言中缺少以下代码行，所以我添加了它：

\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}

通过上述更改，您的代码现在可以编译而不会出现错误消息，但仍会抛出一些过满框警告，因为您的表格比可用空间宽。因此，我添加了\setlength{\tabcolsep}{0pt}并使用\begin{tabular*}{\linewidth}{@{\extracolsep{\fill}}l*{16}{c}}来\begin{tabular}{l*{16}{c}}确保您的表格 a) 宽度相等且 b) 适合可用空间。

以下是完整的 MWE：

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{lscape}
\usepackage{subcaption}

\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}

\begin{document}



\begin{landscape}

\begin{table}[h]
\setlength{\tabcolsep}{0pt}
\caption{Effects}
\begin{subtable}{\linewidth}
\small
\caption{A subtable}
\label{tab:1a}
\begin{tabular*}{\linewidth}{@{\extracolsep{\fill}}l*{16}{c}}
\hline\hline
&\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}&\multicolumn{1}{c}{(5)}&\multicolumn{1}{c}{(6)}&\multicolumn{1}{c}{(7)}&\multicolumn{1}{c}{(8)}&\multicolumn{1}{c}{(9)}&\multicolumn{1}{c}{(10)}&\multicolumn{1}{c}{(11)}&\multicolumn{1}{c}{(12)}&\multicolumn{1}{c}{(13)}&\multicolumn{1}{c}{(14)}&\multicolumn{1}{c}{(15)}\\
\hline
\# months    &       0.192\sym{*}  &       0.139         &       0.190\sym{*}  &       0.168         &      -0.019         &       0.070         &       0.065         &       0.139\sym{*}  &       0.185         &       0.072         &       0.018         &       0.047         &      -0.088         &       0.000         &     -17.812                 \\
            &      (1.65)         &      (1.28)         &      (1.71)         &      (1.13)         &     (-0.17)         &      (0.94)         &      (0.48)         &      (1.78)         &      (1.26)         &      (0.70)         &      (0.21)         &      (0.26)         &     (-0.86)         &         (.)         &     (-1.03)                \\
[1em]
\# quartals  &       0.557         &       0.406         &       0.525         &       0.485         &      -0.068         &       0.227         &       0.175         &       0.437\sym{*}  &       0.539         &       0.206         &       0.063         &       0.107         &      -0.244         &       0.000         &     -55.164             \\
            &      (1.63)         &      (1.25)         &      (1.58)         &      (1.09)         &     (-0.20)         &      (1.02)         &      (0.43)         &      (1.87)         &      (1.23)         &      (0.69)         &      (0.24)         &      (0.19)         &     (-0.80)         &         (.)         &     (-1.03)                \\
[1em]
\# years     &       2.508\sym{*}  &       1.999         &       2.282\sym{*}  &       2.556         &      -0.405         &       0.951         &       1.366         &       1.750\sym{*}  &       1.923         &       1.004         &       0.573         &       0.756         &      -1.194         &       0.000         &    -234.503              \\
            &      (1.85)         &      (1.54)         &      (1.68)         &      (1.45)         &     (-0.31)         &      (1.12)         &      (0.86)         &      (1.87)         &      (1.09)         &      (0.87)         &      (0.54)         &      (0.35)         &     (-0.95)         &         (.)         &     (-1.04)               \\
\hline\hline
\end{tabular*}
\end{subtable}

\hfill

\begin{subtable}{\linewidth}
\centering
\small
\caption{A subtable}\label{tab:1b}
\begin{tabular*}{\linewidth}{@{\extracolsep{\fill}}l*{16}{c}}
\hline\hline
            &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}&\multicolumn{1}{c}{(5)}&\multicolumn{1}{c}{(6)}&\multicolumn{1}{c}{(7)}&\multicolumn{1}{c}{(8)}&\multicolumn{1}{c}{(9)}&\multicolumn{1}{c}{(10)}&\multicolumn{1}{c}{(11)}&\multicolumn{1}{c}{(12)}&\multicolumn{1}{c}{(13)}&\multicolumn{1}{c}{(14)}&\multicolumn{1}{c}{(15)}\\
\hline
\# months    &       0.396\sym{*}  &      -0.017         &       0.008         &       0.197         &       0.056         &       0.032         &       0.202         &       0.131         &       0.461\sym{*}  &       0.174         &       0.299         &      -0.310         &       0.283         &       0.000         &       0.398\sym{*}       \\
            &      (1.83)         &     (-0.52)         &      (0.03)         &      (0.97)         &      (0.78)         &      (0.71)         &      (1.47)         &      (0.79)         &      (1.74)         &      (1.29)         &      (1.34)         &     (-1.15)         &      (1.06)         &         (.)         &      (1.78)               \\
[1em]
\# quartals  &       1.178\sym{*}  &      -0.057         &       0.018         &       0.593         &       0.172         &       0.098         &       0.610         &       0.400         &       1.329\sym{*}  &       0.490         &       0.918         &      -0.985         &       0.862         &       0.000         &       1.156\sym{*}          \\
            &      (1.82)         &     (-0.58)         &      (0.02)         &      (0.98)         &      (0.80)         &      (0.72)         &      (1.49)         &      (0.80)         &      (1.68)         &      (1.25)         &      (1.39)         &     (-1.22)         &      (1.08)         &         (.)         &      (1.78)             \\
[1em]
\# years     &       4.416\sym{*}  &      -0.317         &      -0.509         &       0.981         &       0.399         &       0.318         &       1.595         &       1.341         &       4.897         &       2.038         &       4.193         &      -4.298         &       3.354         &       0.000         &       4.519               \\
            &      (1.71)         &     (-0.83)         &     (-0.18)         &      (0.41)         &      (0.46)         &      (0.67)         &      (0.96)         &      (0.70)         &      (1.55)         &      (1.37)         &      (1.59)         &     (-1.36)         &      (1.04)         &         (.)         &      (1.64)               \\
\hline\hline
\end{tabular*}
\end{subtable}
\end{table}

\end{landscape}

\end{document}