Gnuplot
Simple example
plot "hists.dat" using 1:2 title 'Column' with lines, \
"hists.dat" u 1:3 t 'Beam' w linespoints
set terminal postscript color enhanced
set output "my-plot.ps"
replot
set terminal x11
Then open the output with gv my-plot.ps.
To merge columns in two different files:
paste qqqqg_ymax_V.dat qqqqg_ymax_R.dat > qqqqg_ymax.dat
then in gnuplot:
plot "qqqqg_ymax.dat" u 1:($2+$5):(sqrt($3*$3 + $6*$6)) w e
Reference
Gnuplot homepage | Demo scripts | Documentation
GNUPLOT 4.2 - A Brief Manual and Tutorial
page revision: 2, last edited: 12 Oct 2010 19:14