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 code 94 (qdamin=6)"
set boxwidth 0.6
plot "j06_qda_ret" using ($1*4+$2):5 title "jun2006 wafer 71" with boxes, "j06_qda_ret" using ($1*4+$2):4 title "Rel.# of chips" with histeps lw 4
pause -1
set terminal png
set output "j06_qda_rm.png"
replot