\begin{table}%t4
\caption{Projected velocity dispersion as a~function of projected
galactocentric radius. The upper section shows the values for all, the
blue, and the red clusters. The dispersions for the corresponding
error-selected samples are listed in the lower section. The data are
shown in Fig.~\ref{dispall}. The values in brackets are those obtained
when omitting the two~(blue) GCs with velocities above
$1400~{\rm km~s}^{-1}$.}
\label{disptab}
%\centering
$$
\begin{tabular}{c r@{$\;\pm\;$}l r@{$\;\pm\;$}lr@{$\;\pm\;$}l}
\hline
\hline
\multicolumn{1}{c}{$R$} & 
\multicolumn{2}{c}{$\sigma$~(all)}& 
\multicolumn{2}{c}{$\sigma$~(blue)}&  
\multicolumn{2}{c}{ $\sigma$~(red)}
\\
\multicolumn{1}{c}{(arcmin)} & 
\multicolumn{2}{c}{$({\rm km~s}^{-1})$}&  
\multicolumn{2}{c}{$({\rm km~s}^{-1})$}&  
\multicolumn{2}{c}{$({\rm km~s}^{-1})$}    
\\ 
\hline
\multicolumn{7}{c}{no error selection}\\
\hline
1.7 & $228$& $23$ & $218$& $30$ &  $241$& $39$ \\
3.2 & $157$& $22$ & $160$& $33$ &  $155$& $32$ \\
4.7 & $204$& $24$ & $205$& $33$ &  $207$& $37$ \\
6.2 & $206$& $25$ & $196$& $30$ &  $190$& $39$ \\
6.2 & $(169$& $21)$ &$(126$&$21)$&  \multicolumn{2}{c}{~} \\
7.7 & $207$& $43$ & $220$& $63$ &  $196$& $65$ \\
9.2 & $105$& $41$ &  \multicolumn{2}{c}{~} & \multicolumn{2}{c}{~} \\
\hline
\noalign{\smallskip}
\multicolumn{7}{c}{error-selected samples $(\Delta \varv < 35~{\rm km~s}^{-1})$}\\
\noalign{\smallskip}
\hline
1.7 & $221$& $25$ & $198$& $32$ &  $241$& $38$ \\
3.2 & $185$& $37$ & $207$& $64$ &  $172$& $46$ \\
4.7 & $175$& $24$ & $181$& $34$ &  $168$& $33$ \\
6.2 & $226$& $34$ & $227$& $46$ &  $194$& $42$ \\
6.2 & $(178$& $27)$ & $(121$&$27)$& \multicolumn{2}{c}{~}     \\
7.7 & $162$& $260$ & \multicolumn{2}{c}{~} &\multicolumn{2}{c}{~}        \\
9.2 & $105$& $41$  & \multicolumn{2}{c}{~}&\multicolumn{2}{c}{~}         \\
\hline
\end{tabular}
$$
\end{table}