set grid
plot \
"<./integrate 0 | head -n 400" w l t "Retaining every sample", \
"<./integrate 9 | head -n 400" w l t "Retaining every 10'th sample", \
"<./integrate 99 | head -n 400" w l t "Retaining every 100'th sample", \
"<./integrate 999 | head -n 400" w l t "Retaining every 1000'th sample"