On Mon, 5 Dec 2011, Sven Schreiber wrote:
sprintf strColindices "%d", seq(1,cols(mymatrix))
gnuplot @strColindices --with-lines <etc>
A technical note to Sven's idea: the problem is not the space (or lack
thereof): a print format like "%3d" would have solved the problem; the
problem is that when you "printf" a matrix, a newline is automtically
appended, which confuses the gnuplot command.
Riccardo (Jack) Lucchetti
Dipartimento di Economia
Università Politecnica delle Marche
r.lucchetti(a)univpm.it
http://www.econ.univpm.it/lucchetti