# Align math contents in a table

While trying to display some data in a table, I use tabu and siunitx. I want the content to be centered by the dot. However, the cell at last column, first row is not centered.

\documentclass{article}
\usepackage{siunitx}
\usepackage{tabu}
\newcolumntype Y{S[%
group-four-digits=false,
round-mode=places,
round-precision=3,
round-integer-to-decimal=false,
per-mode=symbol,
detect-all,
]}
\tabucolumn Y
\usepackage{booktabs}
\makeatletter
\def\NN{\tabularnewline}
\def\FL{\toprule}
\def\ML{\NN\midrule}
\def\LL{\NN\bottomrule}
\makeatother

\begin{document}

\begin{tabu}{|c|Y|Y|Y|Y|}
\FL
$K$ & {2} & {5} & {10} & {100}
\ML
$\gamma_3$ & 0.13731 & 0.14011 & 0.11446 & 0.040306
\NN
$\gamma_4$ & -0.22974 & -0.069162 & -0.17112 & 0.11587
\LL
\end{tabu}
\end{document}
-
Is your question similar to Aligning text in S columns in a way that respects the decimal marker for numerical entries I wonder if the 'standard' \newcommand{\heading}[1]{\multicolumn{1}{c}{#1}} trick could work for you? –  cmhughes Feb 5 '13 at 5:28
I tried that. It does the trick, however a global solution would be better. –  cacamailg Feb 5 '13 at 5:31