I am trying to construct a table, but the spacing isn't balanced.
\documentclass{article}
\usepackage[english]{babel}
\usepackage{multirow}
\begin{document}
\begin{center}
\begin{tabular}{ |c|c|c|c|c|c|c|c|c|c| }
\hline
\multirow{2}{*}{Class} & \multicolumn{2}{c|}{Similarity Gibbs Sampling} & \multicolumn{2}{c|}{Hand Computatation} & \multicolumn{4}{c|}{Combination} & \multirow{2}{*}{Graph Cut(S)} \\ \cline{2-1} \cline{3-1} \cline{4-1} \cline{5-1} \cline{6-1} \cline{7-1} \cline{8-1} \cline{9-1}
& 0 & 1 & 0 & 1 & 1 & 2 & 3 & 4 & \\ \hline
${V_1}$ & 0.388 & 0.612 & 0.393 & 0.607 & 0 & 0 & 1 & 0 & 2 \\ \hline
${V_2}$ & 1 & 0 & 1 & 0 & 0 & 0 & 1 & 1 & 2 \\ \hline
${V_3}$ & 0 & 1 & 0 & 1 & 1 & 0 & 1 & 0 & 3 \\ \hline
${V_4}$ & 0.388 & 0.612 & 0.393 & 0.607 & 1 & 0 & 1 & 1 & 1 \\ \hline
%\cline{2-1}
\end{tabular}
\end{center}
\end{document}
As you can see, the 3rd column and 5th column do not share the same spacing as 2nd and 4th respectively.
tabularx
package, and also thesiunitx
package for help with decimal alignment (and more)