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如何在表格中将列名称居中

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如何在表格中将列名称居中

我想将列名居中，因为它们当前是左对齐的。

我使用的代码是：

\begin{tabular}{@{\extracolsep{0pt}} lcccc} 
\\[-1.8ex]\hline 
\hline \\[-1.8ex] 
 & N & \vtop{\hbox{\strut Green}\hbox{\strut bond issuers (1)}} & \vtop{\hbox{\strut Non-green}\hbox{\strut bond issuers (2)}}  & \vtop{\hbox{\strut p-value}\hbox{\strut (diff. in means) (3)}}\\ 
\hline \\[-1.8ex] 
Log(assets) & 001 & 1.621 & 6.666 & 0.000\textasteriskcentered \textasteriskcentered \textasteriskcentered  \\ 
 &  & (0.999) & (0.025) &  \\ 
Return on assets & 1321 & 0.099 & 0.000 & 0.000\textasteriskcentered \textasteriskcentered \textasteriskcentered  \\ 
 &  & (0.888) & (0.101) &  \\ 
\hline \\[-1.8ex] 
\end{tabular} 
\end{table}

答案1

你想要这样的东西吗？

在此处输入图片描述

它是使用makecell和booktabs包生成的。包thead中的宏makecell允许在表头中插入手动换行符，并且还可以水平和垂直居中内容（但是也可以使用可选参数进行不同的对齐）。

\documentclass{article}

\usepackage{makecell}
\usepackage{booktabs}

\begin{document}
\begin{table}
    \centering
    \begin{tabular}{@{}l*{4}{c}}
    \toprule
    & \thead{N} & \thead{Green\\bond issues\\(1)} & \thead{Non-green\\bond issues\\(2)} & \thead{p-value\\(diff. in means)\\(3)}
    \\\midrule
    Log(assets) & 001 & 1.621 & 6.666 & 0.000\textasteriskcentered \textasteriskcentered \textasteriskcentered  \\ 
    &  & (0.999) & (0.025) &  \\ 
    Return on assets & 1321 & 0.099 & 0.000 & 0.000\textasteriskcentered \textasteriskcentered \textasteriskcentered  \\ 
    &  & (0.888) & (0.101) &  
    \\\bottomrule
    \end{tabular}
    \caption{Caption}
    \label{tab:my_label}
\end{table}
\end{document}

答案2

这是一个稍微复杂一些的解决方案，但它可以用于类似类型的更复杂的表格：


\documentclass[border=3.131592]{standalone}
\usepackage{tabularray}
\UseTblrLibrary{booktabs, siunitx, varwidth}
\sisetup{
    input-open-uncertainty =,
    input-close-uncertainty=,
        }
  \ExplSyntaxOn
\NewChildSelector{eachtwo}
  {
    \int_step_inline:nnnn {2}{2}{\l_tblr_childs_total_tl}
      { \clist_put_right:Nn \l_tblr_childs_clist {##1} }
  }
\ExplSyntaxOff

 
\begin{document}
    \begin{talltblr}[
caption = {caption title},
  label = {tab:???},
note{} = {***: some explanation},
                    ]{colspec = {l c
                              *{2}{S[table-format={(}1.3{)}]}
                                   S[table-format=1.3{***}]},
                       colsep = {4pt},
                     row{2-Z} = {rowsep=0pt},
                 row{eachtwo} = {abovesep=3pt},
                      measure = vbox
                     }
    \toprule
    & N     & {{{Green\\ bond issuers\\ (1)}}}
                & {{{Non-green\\ bond issuers\\ (2)}}}
                            & {{{$p$-value\\ {(diff. in means)}\\ (3)}}}   
                                    \\
    \midrule
Log(assets) 
    & 001   & 1.621     & 6.666     & 0.000\TblrNote{***}   \\
    &       & (0.999)   & (0.025)   &                       \\
Return on assets 
    & 1321  & 0.099     & 0.000     & 0.000\TblrNote{***}   \\
    &       & (0.888)   & (0.101)   &                       \\
    \bottomrule
    \end{talltblr}
\end{document}

在此处输入图片描述

编辑：tabularray一个改进表格注释的解决方案（正如我在询问时向 软件包作者建议的那样）github）。现在表格的注释可以按照 enimitem包定义的列表进行组织：

\documentclass[border=3.131592]{standalone}
\usepackage{enumitem}  % <---
\usepackage{tabularray}
\UseTblrLibrary{booktabs, siunitx, varwidth}
\NewTblrTheme{itemize}% you can select different name of theme
{
\DefTblrTemplate{note}{default}{%
  \setlength{\linewidth}{\tablewidth}%
  \begin{enumerate}[nosep]
    \MapTblrNotes {
      \item[\UseTblrTemplate{note-tag}{default}{:}]
      \UseTblrTemplate{note-target}{default}
      \UseTblrTemplate{note-text}{default}
                  }
  \end{enumerate}            }% end of template
} % end of theme
\sisetup{
    input-open-uncertainty =,
    input-close-uncertainty=,
        }
\ExplSyntaxOn
\NewChildSelector{eachtwo}
{
    \int_step_inline:nnnn {2}{2}{\l_tblr_childs_total_tl}
      { \clist_put_right:Nn \l_tblr_childs_clist {##1} }
}
\ExplSyntaxOff


\begin{document}
    \begin{talltblr}[
  theme = itemize,
caption = {Caption title},
  label = {tab:talltblr},
 note{**}  = {first explanation},
 note{***} = {second explanation},
                    ]{colspec = {l c
                              *{2}{S[table-format={(}1.3{)}]}
                                   S[table-format=1.3{***}]},
                       colsep = {4pt},
                     row{2-Z} = {rowsep=0pt},
                 row{eachtwo} = {abovesep=3pt},
                      measure = vbox
                     }
    \toprule
    & N     & {{{Green\\ bond issuers\\ (1)}}}
                & {{{Non-green\\ bond issuers\\ (2)}}}
                            & {{{$p$-value\\ {(diff. in means)}\\ (3)}}}
                                    \\
    \midrule
Log (assets)
    & 001   & 1.621     & 6.666     & 0.000\TblrNote{**}    \\
    &       & (0.999)   & (0.025)   &                       \\
Return on assets
    & 1321  & 0.099     & 0.000     & 0.000\TblrNote{***}   \\
    &       & (0.888)   & (0.101)   &                       \\
    \bottomrule
    \end{talltblr}
\end{document}

在此处输入图片描述

答案3

有很多方法可以实现这种效果。 \multicolumn{1}{p{...}}{...}将一c列替换为一p列，但您必须指定宽度。您可以将一个表格放在一个表格中。但最简单、最不令人困惑的解决方案是简单地将文本分成三行（两行对于页面来说太宽了）。

\documentclass{article}
\usepackage{showframe}

\begin{document}

\begin{table}
\centering
\begin{tabular}{lcccc}% \extracolsep is only used with tabular*
\\[-1.8ex]% adds \arrarystretch\baselineskip - 1.8ex
\hline\hline
\\[-1.8ex]
 & N & Green & Non-green & p-value \\
 & & bond issuers & bond issuers & (diff. in means) \\
 & & (1) & (2) & (3) \\
\hline
\\[-1.8ex] 
Log(assets) & 001 & 1.621 & 6.666 & 0.000\textasteriskcentered \textasteriskcentered \textasteriskcentered  \\ 
 &  & (0.999) & (0.025) &  \\ 
Return on assets & 1321 & 0.099 & 0.000 & 0.000\textasteriskcentered \textasteriskcentered \textasteriskcentered  \\ 
 &  & (0.888) & (0.101) &  \\ 
\hline 
\\[-1.8ex] 
\end{tabular}
\end{table}

\end{document}

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