set yrange [-3.2 to 3.2]
set noxtics
set noytics
set nokey
set xzeroaxis
set xlabel "q"
set label "{/Symbol G}" at -0.06 , -3.4
set label "K" at 2.42 , -3.4
set label "M" at 3.63 , -3.4
set label "{/Symbol G}" at 5.67 , -3.4
set terminal postscript color enhanced
set output "fig.ps"
plot 'out1.dat' u 1:2 w l 1,'out1.dat' u 1:3 w l 1,\
'out2.dat' w l 1