Electron Gas Gnuplot File

set yrange[-1 to 1]
set xzeroaxis
set nokey
set xlabel "{/Symbol w}"
set ylabel "{/Symbol c}_q({/Symbol w})"
set terminal postscript color enhanced
set output "test.ps"
plot 'output.dat' u 1:2 w l 1, 'output.dat' u 1:3 w l 2