\begin{table} %T3
\caption{\label{fittingcomb}Best-fitting parameters for the joint CPL and BPL fits to all six sub-regions of 
3C~449.} 
\small
%\centering
\par
\begin{tabular}{c c c c c c c c c c c c c}      
\hline\hline\noalign{\smallskip}       
&            \multicolumn{5}{c} {Best fit} & & \multicolumn{3}{c} {Min slope}& 
	      \multicolumn{3}{c} {Max slope} \\
	      \noalign{\smallskip}   
&               $q$ &$f_{\rm max}$ &  & $\chi^2$ &  & $q^{\rm -}$  & $f_{\rm max}$     &
	        &   $q^{\rm +}$ &  $f_{\rm max}$ &  \\ \noalign{\smallskip}   
joint CPL  & 2.68 & 1.67 &  &  33.5 &  & 2.55  & 1.30 & &  2.81     & 2.00 &       \\
\hline
  &\multicolumn{5}{c} {Best fit} & & \multicolumn{3}{c} {Min slope} & \multicolumn{3}{c} {Max slope} \\\noalign{\smallskip}   
  & $q_l$ &$f_{\rm b}$ & $q_h$  &  $\chi^2$ & & $q_l^{\rm -}$ & $f_{\rm b}$ &  $q_h^{\rm -}$ &
	  $q_l^{\rm +}$ & $f_{\rm b}$ & $q_l^{\rm +}$  \\ \noalign{\smallskip}   
joint BPL  & 2.07 & 0.031 & 2.97   & 17.7 & & 1.99 & 0.044 & 2.91 & 2.17 & 0.021 & 3.09 &\\ 
\hline
\end{tabular} 
\tablefoot{Lower and upper limits are quoted at $\sim$90\% confidence. The values of $q$ and  $f_{\rm max}$  for the joint
CPL fit and  $q_h$, $q_l$ and  $f_{\rm b}$  for the joint BPL 
fit are the same for all sub-regions, while the normalizations are varied  to minimize the overall $\chi^2$. In the joint BPL fit, the maximum frequency is fixed at $f_{\rm max}=
1.67$~arcsec$^{-1}$.} 
\end{table}