set yrange [0:109]
set xrange [-1:16]
set grid x
set grid y
set xlabel "Ret pos i*4+j"
set ylabel "% of chips with internal errors"
set boxwidth 0.6
plot "pre_rm_ie" using ($1*4+$2):5 title "preproduction wafers, 14324 chips" with boxes, "pre_rm_ie" using ($1*4+$2):4 title "Rel.# of chips" with histeps lw 4
pause -1
set terminal png
set output "pre_rm_ie.png"
replot