Am 16.10.2016 um 14:18 schrieb LyX Ticket Tracker:
#9568: Multicolumn, fixed width, and decimal-separator-alignment does not
compile
If you show us how to do it in LaTeX, we can implement it in LyX.
OK, you asked for it...
The attached Latex file uses the "siunitx" package (which I've never
used before) to achieve flexibility with respect to the
within-cell-alignment of the decimal-aligned multicolumns.
(If the attachment doesn't make it through this channel please tell me.)
In the attached version you find the line "table-number-alignment =
center," -- you can substitute "left" or "right" there, and it yields
the intended effect for me, namely the whole block of what's in the
three multicolumn rows wanders to the left or to the right, while
staying aligned at the decimal dot.
BTW, the "{c}" part after the three "\multicolumn{2}" thingies is
mysterious to me, changing that to "{l}" or "{r}" didn't seem to have
any effect.
HTH,
Sven
\documentclass{article}
\usepackage{siunitx}
\usepackage{booktabs}
\begin{document}
\begin{table}
\caption{Controlling complex alignment with the {tablenum}
macro.}
\label{tab:tablenum}
\sisetup{
table-number-alignment = center,
table-figures-integer = 4,
table-figures-decimal = 4
}
\centering
\begin{tabular}{lr}
\toprule
Heading & Heading \\
\midrule
Info & More info \\
Info & More info \\
\multicolumn{2}{c}{\tablenum{12,34}} \\
\multicolumn{2}{c}{\tablenum{333.5567}} \\
\multicolumn{2}{c}{\tablenum{4563.21}} \\
\bottomrule
\end{tabular}
\hfil
\end{table}
\end{document}
