使表格中的值居中

Question

以下是我完成格式化的方式：

\begin{table}[htbp]
\centering
\begin{tabularx}{\linewidth}{|l|X|X|X|X|X|X|X|}
\hline 
\multicolumn{1}{|c|}{\textit{\textbf{Parameters}}} & 
\multicolumn{1}{c|}{\textit{\textbf{Test (WOE)}}} &
\multicolumn{1}{c|}{\textit{\textbf{Test (WRE)}}} &
\multicolumn{1}{c|}{\textit{\textbf{G}}} &
\multicolumn{1}{c|}{\textit{\textbf{B}}} &
\multicolumn{1}{c|}{\textit{\textbf{W}}} 
\tabularnewline \hline
0.05\_0.025\_0.05\_0.2 & 24.86 & 37.67 &  &  & 
\tabularnewline \hline
0.05\_0.05\_0.05\_0.1 & 36.15 & 52.53 &  &  & 
\tabularnewline \hline
0.05\_0.075\_0.05\_0.2 & 24.23 & 35.30 &  &  & 
\tabularnewline \hline
0.1\_0.05\_0.2\_0.2 & 15.58 & 41.2 &  &  & 
\tabularnewline \hline
0.2\_0.05\_0.05\_0 & 18.78 & 52.98 &  &  & 
\tabularnewline \hline
0.2\_0.05\_0.1\_0.05 & 22.91 & 54.06 &  &  &
\tabularnewline \hline
\end{tabularx}
\caption{To add}
\label{table:to add}   
\end{table}

似乎居中并不能使代码正常工作

表格现在的样子如附图所示

任何建议都将不胜感激

Answer 1

我认为您希望采用环境的原因tabularx是为了确保五个数据列都具有完全相同的宽度。

我建议您定义一个居中版本的X列类型并删除\multicolumn包装器，以防止出现其他合理的换行符。

\documentclass{article} 
\usepackage{tabularx}
\newcolumntype{C}{>{\centering\arraybackslash}X} % centered version of 'X'

\begin{document} 
\begin{table}[htbp]
%\centering %% redundant
\begin{tabularx}{\linewidth}{ |l| *{5}{C|} }
\hline 
\textit{\textbf{Parameters}} & 
\textit{\textbf{Test (WOE)}} &
\textit{\textbf{Test (WRE)}} &
\textit{\textbf{G}} &
\textit{\textbf{B}} &
\textit{\textbf{W}} \\ 
\hline
0.05\_0.025\_0.05\_0.2 & 24.86 & 37.67 &  &  & \\ 
\hline
0.05\_0.05\_0.05\_0.1  & 36.15 & 52.53 &  &  & \\ 
\hline
0.05\_0.075\_0.05\_0.2 & 24.23 & 35.30 &  &  & \\ 
\hline
0.1\_0.05\_0.2\_0.2    & 15.58 & 41.2\phantom{0} &  &  & \\ 
\hline
0.2\_0.05\_0.05\_0     & 18.78 & 52.98 &  &  & \\ 
\hline
0.2\_0.05\_0.1\_0.05   & 22.91 & 54.06 &  &  &\\
\hline
\end{tabularx}
\caption{To add}
\label{table:to add}   
\end{table}

\end{document}

Answer 2

假设除第一列外，所有列都是十进制数，其中有两个整数和两个小数位。在这种情况下，以下siunitx和siunitx包的组合会很方便。对于列标题，定义了两个新命令：\mcx 和\mr作为\multirow{2}{*}{ ... }（用于单元格跨越两行文本的列标题中）：

\documentclass{article}
\usepackage{multirow, tabularx}
\newcommand\mcx[1]{\multicolumn{1}{>{\itshape\bfseries%
                                     \centering\arraybackslash}X|}{#1}}
\newcommand\mr[1]{\multirow{2}{*}{{#1}}}
\usepackage{siunitx}

\begin{document}
    \begin{table}[htb]
\begin{tabularx}{\linewidth}{ |l| *{5}{S[table-format=2.2]|} }
    \hline
\mr{\textit{\textbf{Parameters}}} 
    &   \mcx{Test (WOE)}
        &   \mcx{Test (WRE)}
            &   \mcx{\mr{G}}
                &   \mcx{\mr{B}}
                    &   \mcx{\mr{W}}           \\
    \hline
0.05\_0.025\_0.05\_0.2 & 24.86 & 37.67 &  &  & \\
    \hline
0.05\_0.05\_0.05\_0.1  & 36.15 & 52.53 &  &  & \\
    \hline
0.05\_0.075\_0.05\_0.2 & 24.23 & 35.30 &  &  & \\
    \hline
0.1\_0.05\_0.2\_0.2    & 15.58 & 41.2  &  &  & \\
    \hline
0.2\_0.05\_0.05\_0     & 18.78 & 52.98 &  &  & \\
    \hline
0.2\_0.05\_0.1\_0.05   & 22.91 & 54.06 &  &  &\\
    \hline
\end{tabularx}
\caption{To add (table captions are usually at top of tables)}
\label{table:to add}
    \end{table}
\end{document}