reset

set terminal pdf transparent size 8.00in, 3.00in linewidth 8
set output "signal.pdf"
set xrange [256:768]
unset border
unset xtics
unset ytics
plot "signal.dat" with lines lc rgb "black" notitle

set output "levels.pdf"
plot\
	"level7.dat" with lines lc rgb "red" notitle,\
	"level5.dat" with lines lc rgb "blue" notitle
