Dear All,

I would like to define a command that expands 

\vector{2,4} % or vector[2,4] if that’s easier

to

\startpmatrix
 \NC 2 \NR
 \NC 4 \NR
\stoppmatrix

and more generally

\vector{2,4,1,7}

to

\startpmatrix
 \NC 2 \NR
 \NC 4 \NR
\NC 1 \NR
\NC 7 \NR
\stoppmatrix

Any hints how to achieve this?

Thanks,

Matthias