Two cases:
Case 1: If the points are equidistant
x1 = linspace(0.97,1.36,9) ;
x2 = linspace(0.93,1.32,11) ;
y1 = zeros(size(x1)) ;
y2 = zeros(size(x2)) ;
plot(x1,y1,'*r',x2,y2,'*b')
Case 2: If the points are random
x1 = linspace(0.97,1.36,100) ;
x2 = linspace(0.93,1.32,100) ;
x1 = x1(randperm(100,9)) ;
x2 = x2(randperm(100,11)) ;
y1 = zeros(size(x1)) ;
y2 = zeros(size(x2)) ;
plot(x1,y1,'*r',x2,y2,'*b')
