set ylabel "Number of ORIs (SerNr 101-170)"
set xlabel "optical power, uW"
set boxwidth 18
plot "pnc.dat" using ($1+10):3 title "Distribution of the laser power" with boxes
pause -1
plot "pc.dat" using ($1+10):3 title "Distribution of the laser power (6 corrected)" with boxes
pause -1

set terminal png
set output "ORIp2pw_nc.png"
plot "pnc.dat" using ($1+10):3 title "Distribution of the laser power" with boxes
set output "ORIp2pw_c.png"
plot "pc.dat" using ($1+10):3 title "Distribution of the laser power (6 corrected)" with boxes
set output