将十进制数与不同的数字对齐

Question

我正在尝试创建下表，但遇到有关该表的两个问题：

1- 表格中“.”前后的数字是不同的数字。我试图使用代码{l*{2}{S[table-format = 3.1]}}来对齐数字，但失败了。对于这样的表格，我该如何实现十进制数字的对齐？（你能给出评论来解释代码吗？）

2- 有没有办法控制表格中每列的宽度？我尝试了 c{2cm}，错误显示为“非法特征”。

\documentclass{article}
\usepackage{amsmath,amssymb,graphicx}
\usepackage{threeparttable}

\begin{document}

\begin{table}
    \centering      
    \caption{The results on the datasets} 
    \begin{tabular} 
    {c|c|c|c|c}
        \hline            
        {Methodology}  &  \multicolumn{2}{c|}{Data 1}   &   \multicolumn{2}{c}{Data 2}  \\  \cline{2-5}
        & mean $\pm$ std & p\_value & mean$\pm$ std &  p\_value    \\  \hline
    method 1 &   $1700.5\pm 200.91$  & $0.0\%$  & $-10000.2\pm800.0$ & $0.0\%$     \\ 
        method 2 &   $300.8\pm 100.0$  & $0.5\%$ & $-10002.18\pm 800.5$  & $0.0\%$   \\    
         method 3 &   $-100.5\pm 200.2$ & $10.5\%$  & $-8006.8\pm 899.8$  & $0.0\%$     \\          Method 4 &  $553.83 \pm 102.2$ & $0.1\%$  & $-20090.8\pm 300.1$  & $0.0\%$    \\   
            
        \hline
    \end{tabular}
\end{table}

\end{document}

Answer 1

• 要排版一列与单独的不确定性相关的数字，您可以使用包siunitx，设置包选项separate-uncertainty，删除$内联数学启动符和终止符，然后将列类型设置为（例如）S[table-format=-3.2(3.2)]。

• 为了使列居中并且具有固定宽度（比如说） 2 厘米，请加载包array（另外：该array包非常有用，因此许多其他包会array自动加载该包），然后更改c为w{c}{2cm}。

请注意，我还选择通过省略所有垂直线并用包的画线宏替换\hline和来使表格具有更开放的“外观” 。\clinebooktabs

\documentclass{article}
\usepackage{amsmath,amssymb,booktabs}
\usepackage[T1]{fontenc}
\usepackage[separate-uncertainty,group-minimum-digits=4]{siunitx}
\begin{document}

\begin{table}
    \centering      
    \caption{Summary statistics for datasets\strut} 
    \begin{tabular}{@{} l S[table-format=-3.2(3.2)] S
                          S[table-format=-5.2(3.2)] S @{}}
    \toprule            
    Methodology & \multicolumn{2}{c}{Data 1} & \multicolumn{2}{c@{}}{Data 2}  \\  
    \cmidrule(lr){2-3} \cmidrule(l){4-5}
    & {mean $\pm$ std} & {p\_value} & {mean$\pm$ std} &  {p\_value} \\ 
    \midrule
    method 1 &  1700.5\pm 200.91 &  0.0\% & -10000.2 \pm 800.0 & 0.0\%     \\ 
    method 2 &   300.8\pm 100.0  &  0.5\% & -10002.18\pm 800.5 & 0.0\%   \\    
    method 3 &  -100.5\pm 200.2  & 10.5\% &  -8006.8 \pm 899.8 & 0.0\%     \\  
    method 4 &  553.83 \pm 102.2 & 0.1\%  & -20090.8 \pm 300.1 & 0.0\%    \\
    \bottomrule
    \end{tabular}
\end{table}

\end{document}

Answer 2

\documentclass{article}
\usepackage{geometry}
\usepackage{siunitx}
\usepackage{booktabs}

\begin{document}

\begin{table}
    \centering      
    \caption{The results on the datasets} 
    \sisetup{separate-uncertainty, table-column-width=3.25cm}
    \begin{tabular} 
    {c|S[table-format=-3.2(3.2)]|S[table-format=2.1]|S[table-format=-5.2(3.2)]|S[table-format=1.1]|}
        \hline            
        {Methodology}  &  \multicolumn{2}{c|}{Data 1}   &   \multicolumn{2}{c}{Data 2}  \\  \cline{2-5}
        & {\phantom{\num{-100.50}}\llap{mean} $\pm$ \rlap{std}\phantom{\num{200.91}}} & {p\_value (\%)} & {\phantom{\num{-10002.18}}\llap{mean} $\pm$ \rlap{std}\phantom{\num{800.50}}} & { p\_value (\%)}    \\  \hline
       method 1 &   1700.50(20091) & 0.0  & -10000.2(8000) & 0.0    \\ 
       method 2 &   300.8(1000)  & 0.5 & -10002.18(80050)  & 0.0   \\    
       method 3 &   -100.5(2002) & 10.5  & -8006.8(8998)  & 0.0     \\          
       Method 4 &  553.83(1022) & 0.1  & -20090.8(3001) & 0.0    \\   
            
        \hline
    \end{tabular}
\end{table}


\begin{table}
    \centering      
    \caption{The results on the datasets} 
    \sisetup{separate-uncertainty}
    \begin{tabular} 
    {cS[table-format=-3.2(3.2)]S[table-format=2.1]S[table-format=-5.2(3.2)]S[table-format=1.1]}
        \toprule            
        {Methodology}  &  \multicolumn{2}{c}{Data 1}   &   \multicolumn{2}{c}{Data 2}  \\  \cmidrule(lr){2-3} \cmidrule(lr){4-5}
        & {\phantom{\num{-100.50}}\llap{mean} $\pm$ \rlap{std}\phantom{\num{200.91}}} & {p\_value (\%)} & {\phantom{\num{-10002.18}}\llap{mean} $\pm$ \rlap{std}\phantom{\num{800.50}}} & { p\_value (\%)}    \\ 
        \midrule
       method 1 &   1700.50(20091) & 0.0  & -10000.2(8000) & 0.0    \\ 
       method 2 &   300.8(1000)  & 0.5 & -10002.18(80050)  & 0.0   \\    
       method 3 &   -100.5(2002) & 10.5  & -8006.8(8998)  & 0.0     \\          
       Method 4 &  553.83(1022) & 0.1  & -20090.8(3001) & 0.0    \\   
       \bottomrule
    \end{tabular}
\end{table}

\end{document}