set ylabel "Number of ORIs (SerNr 300-369)"
set xlabel "optical power, uW"
set boxwidth 18
set yrange [0:10]
plot "power3_dist.dat" using ($1+10):3 title "Distribution of the laser power" with boxes
pause -1

set terminal png
set output "ORIp4pw_nc.png"
plot "power3_dist.dat" using ($1+10):3 title "Distribution of the laser power" with boxes
set output