\begin{table}%t1
\caption{\label{tab1}Comparison between the S2N2 diagram and the N2 ratio to segregate SF, composite, and AGN galaxies.}
%%\centering

\par
\begin{tabular}{ccccccccccc}   
\hline \hline  \noalign{\smallskip}
\multicolumn{1}{c} { }&\multicolumn{3}{c} {SF segregation ($\%$)}&\multicolumn{4}{c} {Composite segregation ($\%$)}&\multicolumn{3}{c}{AGN segregation ($\%$)}\\
 &SF &SF-missed &Comp&Comp&Comp-missed&SF&AGN&AGN&AGN-missed&Comp \\
 \hline
N2&98.8&18.6&1.2&49.3&27.3&47.7&3&66&9&34\\\
S2N2(1\&3)&98.8&11.8&1.2&61.2&18.6&33.2&5.6&74.6&15.3&25.4\\\
S2N2(2)&91&0.2&8&&&&&&&\\
\hline
\end{tabular}
\end{table}