I want to combine the table data (in a file A.txt)
-0.13336 -0.13634 -0.13336 -0.11589 -0.136
0.76158 0.63087 0.76158 0.95729 0.63
0.9543 0.59712 0.9543 0.90589 0.59712
0.17172 0.13013 0.17172 0.18496 0.13013
4.9543 3.9543 2.9543 5.9543 1.9543
which some labels.
The final result should be (like the tex-result of ...)
\begin{tabular}{ l|l|lllll }
\multirow{3}{*}{New} & a & -0.13336 & -0.13634 & -0.13336 & -0.11589 & -0.136 \\
& z & 0.76158 & 0.63087 & 0.76158 & 0.95729 & 0.63 \\
& b & 0.9543 & 0.59712 & 0.9543 & 0.90589 & 0.59712 \\
\multirow{3}{*}{Old} & a & 0.17172 & 0.13013 & 0.17172 & 0.18496 & 0.13013 \\
& z & 4.9543 & 3.9543 & 2.9543 & 5.9543 & 1.9543 \\
& b & 0.9543 & 0.59712 & 0.9543 & 0.90589 & 0.59712 \\
\end{tabular}
The labels 'a,z,b' are repeated several times and the instead of just 'New' and 'Old', I've a lot more Labels (and therefore I've also a longer table...)
I've alread found here at TeX.SX how to combine two tables, but I'm not sure how put it as format option in \pgfplotstabletypeset