[Tex/LaTex] Formatting table with siunitx: problem with special format

formattingsiunitxtables

I need to create a table which aligns the numbers in a specific format, if x is none or a digit it would look like that: (xxx, xxx) (the first xxx could also be a negative number). What I want to do is align the entries in a column by the comma and maintain the space after the comma and I don't have a clue how to do that.

I also had a look at the siunitx handbook but I couldn't figure out how to do that.

If anyone could help me, I'd be really lucky.

Currently it looks like this:
Wrong alignment

And here's a minimum example:

\documentclass[12pt,a4paper,titlepage]{article}
\usepackage{siunitx, booktabs}
\usepackage{rotating}
\begin{document}
\begin{sidewaystable}
\sisetup{
input-symbols = {()},
table-number-alignment = center,
table-figures-integer  = 2,
parse-numbers=false,
locale = DE
}

\begin{tabular}{@{}cS[separate-uncertainty, table-figures-uncertainty = 1]ll@{}}
\multicolumn{1}{l}{}           & Mean            &                       &                       \\
\multicolumn{1}{l}{Lead Time} & \multicolumn{1}{c}{1} & \multicolumn{1}{c}{2} & \multicolumn{1}{c}{3} \\ \midrule
0                              & (-10, 11)              & (-25, 116)              & (21, 240)               \\
1                              & (11, 252)               & (22, 139)               & (24, 244)               \\
2                              & (63, 390)               & (48, 21)               & (47, 27)               \\
3                              & (66, 790)               & (68, 24)               & (150, 31)              \\ \bottomrule
\end{tabular}
\end{sidewaystable}
\end{document}

Best Answer

Here's a solution that (a) uses an array environment instead of a tabular environment -- this will generate typographically correct - minus symbols -- and (b) spares you the tedium of having to type all those opening and closing parentheses.

enter image description here

\documentclass[12pt,a4paper]{article}
\usepackage{booktabs, array, amsmath, rotating}
\begin{document}
\begin{sidewaystable}
\centering
$\begin{array}{@{} c *{3}{>{(}r @{,\,} r<{)}} @{}}
\toprule
\text{Lead Time} & \multicolumn{6}{c}{\text{Mean}} \\
\cmidrule(l){2-7}
& \multicolumn{2}{c}{1} & \multicolumn{2}{c}{2} & \multicolumn{2}{c@{}}{3} \\
\midrule
0        & -10 &  11 & -25 & 116 &  21 & 240 \\
1        &  11 & 252 &  22 & 139 &  24 & 244 \\
2        &  63 & 390 &  48 &  21 &  47 &  27 \\
3        &  66 & 790 &  68 &  24 & 150 &  31 \\
\bottomrule
\end{array}$
\end{sidewaystable}
\end{document}
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