!set orientation portrait
window 0
defaults
clear
!
set
 textcolor -2
 textinteractive 0
 textalign 4
 %textheight 4

top = 80
delta = 10
scales\-mess -1 1 -1 1
set %xtextlocation 32.75
do i=[0:5]
 set %ytextlocation top-i*delta
 text rchar(i+1)
enddo
set %xtextlocation 51.25
do i=[0:5]
 set %ytextlocation top-i*delta
 text rchar(i+7)
enddo
set %xtextlocation 69.75
do i=[0:5]
 set %ytextlocation top-i*delta
 text rchar(i+13)
enddo
a = [-0.3;-0.3;-0.3;-0.3;-0.3;-0.3;0.2;0.2;0.2;0.2;0.2;0.2;0.7;0.7;0.7;0.7;0.7;0.7]
b = [0.75;0.5;0.25;0.0;-0.25;-0.5;0.75;0.5;0.25;0.0;-0.25;-0.5;0.75;0.5;0.25;0.0;-0.25;-0.5]
set
 plotsymbol -[1:18]
 %plotsymbolsize 4

graph\overlay a b