{
\renewcommand{\arraystretch}{1.3}
\begin{table}
\begin{tabular}{lc}
\hline\hline\noalign{\smallskip}
F& R \\
\noalign{\smallskip}\hline\noalign{\smallskip}
42.34 \pd 0.16 & 42.34 \pd 0.16 \\
424.34 \pd 0.16 & 5542.34 \pd 50.16 \\
\noalign{\smallskip}\hline\noalign{\smallskip}
21.9 & 20.8 \\
9.1 & 8.7 \\
\noalign{\smallskip}\hline\noalign{\smallskip}
\end{tabular}
\end{table}
}
经过您的帮助后的代码：
{
\renewcommand{\arraystretch}{1.3}
\begin{table*}
\caption[]{Solution in \phoebe for different input photometry files, based on photometric data sets and Gaussian RVs for
the primary}\label{PHOEB}
\begin{flushleft}
\sisetup{separate-uncertainty}
\begin{tabular}{l*{6}S[table-format = 3.3(3)]}
\hline\hline\noalign{\smallskip}
Data& B.R & B.B & A & B & K + K & K + L +\\&&&&&&+ S \\
\noalign{\smallskip}\hline\noalign{\smallskip}
Co $ \chi^2$ & 3.758 & 1.721 & 76.945 & 1.008 & 11.389 & 4.067 \\
$b$ & 42.34 \pd 0.16 & 41.63 \pd 0.37 & 41.56 \pd 0.47 & 40.71 \pd 0.21 & 41.91 \pd 0.18 & 41.81 \pd 0.43 \\
\noalign{\smallskip}\hline\noalign{\smallskip}
A & 21.9 & 20.8 & 20.7 & 19.4 & 21.1 & 21.1 \\
B & 9.1 & 8.7 & 8.6 & 8.1 & 8.8 & 8.8 \\
\noalign{\smallskip}\hline\noalign{\smallskip}
\end{tabular}
The rms errors of the last two quoted digits are given in brackets after the respective value.
\end{flushleft}
\end{table*}
}
答案1
使用siunitx：
\documentclass{article}
\usepackage{siunitx}
\begin{document}
{
\renewcommand{\arraystretch}{1.3}
\begin{table}
\sisetup{separate-uncertainty}
\begin{tabular}{S[table-format = 3.2(3)]S[table-format = 4.2(4)]}
\hline\hline\noalign{\smallskip}
F& R \\
\noalign{\smallskip}\hline\noalign{\smallskip}
42.34 \pm 0.16 & 42.34 \pm 0.16 \\
424.34 \pm 0.16 & 5542.34 \pm 50.16 \\
\noalign{\smallskip}\hline\noalign{\smallskip}
21.9 & 20.8 \\
9.1 & 8.7 \\
\noalign{\smallskip}\hline\noalign{\smallskip}
\end{tabular}
\end{table}
}
\end{document}
我擅自添加了使用上述代码生成的表格的图像：
答案2
我还将使用siunitx 并利用它的选项separate-uncertainty：
\documentclass{article}
\usepackage{siunitx}
\begin{document}
\begin{table}
\renewcommand{\arraystretch}{1.3}
\sisetup{separate-uncertainty,
group-four-digits}
\begin{tabular}{S[table-format = 3.2(3)]
S[table-format = 4.2(4)]}
\hline\hline
F & R \\
\hline
42.34(16) & 42.34(16) \\
424.34(16) & 5542.34(5016) \\
\hline
21.9 & 20.8 \\
9.1 & 8.7 \\
\hline
\end{tabular}
\end{table}
\end{document}
这使：
附录
看来您正在寻找类似这样的东西：
上面的表格由两个连续的表格组成，并对列标题的位置进行了手动调整。从 Barbara Beeton 的评论中可以看出，这在某个地方已经解决了，但我没有找到这个。
\documentclass{article}
\usepackage{siunitx}
\begin{document}
\begin{table}
\renewcommand{\arraystretch}{1.3}
\sisetup{separate-uncertainty,
table-column-width=6em}
\begin{tabular}{S[table-format = 3.2(3)]
S[table-format = 4.2(4)]}
\hline\hline
\hphantom{XX}F
& \hphantom{XXx}R \\
\hline
42.34(16) & 42.34(16) \\
424.34(16) & 5542.34(5016) \\
\hline
\end{tabular}\\
\begin{tabular}{S[table-format = 4.2]
S[table-format = 5.2]}
21.9 & 20.8 \\
9.1 & 8.7 \\
\hline
\end{tabular}
\end{table}
\end{document}
答案3
也可以使用包相当简单地完成此操作dcolumn，然后进行一些间距调整。此处定义的新列类型以 为中心，+但打印\pm：
\documentclass[11pt]{article}
\usepackage{dcolumn}
\begin{document}
\renewcommand{\arraystretch}{1.3}
\begin{table}
\newcolumntype{e}[1]{D{+}{\,\pm\,}{#1}} % see dcolumn documentation, page 2
\begin{tabular}{e{6.4}e{7.5}}
\hline\hline\noalign{\smallskip}
\multicolumn{1}{c}{F} & \multicolumn{1}{c}{R} \\
\noalign{\smallskip}\hline\noalign{\smallskip}
42.34+0.16 & 42.34+0.16 \\
424.34+0.16 & 5542.34+50.16 \\
\noalign{\smallskip}\hline\noalign{\smallskip}
21.9 & 20.8 \\
9.1 & 8.7 \\
\noalign{\smallskip}\hline\noalign{\smallskip}
\end{tabular}
\end{table}
\end{document}
之前的一些评论要求将下一行的标题和小数点进一步居中。要覆盖标题，一种方法是使新列类型的数字对称，以便位于\pm列的中心。要处理下面的小数，我们可以添加一个幻像字符，将小数点移到列的中心。
\renewcommand{\arraystretch}{1.3}
\begin{table}
\newcolumntype{e}[1]{D{+}{\,\pm\,}{#1}} % see dcolumn documentation, page 2
\begin{tabular}{e{6.6}e{7.7}} % These only need to be 6.4 and 7.5, but making the 6.6 and 7.7 (symmetric) centers F and R on pm.
\hline\hline\noalign{\smallskip}
\multicolumn{1}{c}{F} & \multicolumn{1}{c}{R} \\
\noalign{\smallskip}\hline\noalign{\smallskip}
42.34+0.16 & 42.34+0.16 \\
424.34+0.16 & 5542.34+50.16 \\
\noalign{\smallskip}\hline\noalign{\smallskip}
\multicolumn{1}{c}{21.9\phantom{9}} & \multicolumn{1}{c}{20.8\phantom{9}} \\ % <== add phantom character to make the decimal centered
\multicolumn{1}{c}{9.1} & \multicolumn{1}{c}{8.7} \\% <== add phantom character to make the decimal centered
\noalign{\smallskip}\hline\noalign{\smallskip}
\end{tabular}
\end{table}
