clear
s1=load('/home/josear/scratch/prob1.dat');
s2=load('/home/josear/scratch/prob2.dat');
s3=load('/home/josear/scratch/prob3.dat');
s4=load('/home/josear/scratch/prob4.dat');
s5=load('/home/josear/scratch/prob5.dat');
ss1=reshape(s1, [2 240]);
ss2=reshape(s2, [2 240]);
ss3=reshape(s3, [2 240]);
ss4=reshape(s4, [2 240]);
ss5=reshape(s5, [2 240]);
hold on
plot(ss1(1,:),ss1(2,:),'k');
plot(ss2(1,:),ss2(2,:),'k');
plot(ss3(1,:),ss3(2,:),'k');
plot(ss4(1,:),ss4(2,:),'k');
plot(ss5(1,:),ss5(2,:),'k');

    Source: geocities.com/pretabbed/code_matlab

               ( geocities.com/pretabbed)