bif1=readp('fdfo.1');
plot(bif1(1:273,5),bif1(1:273,9));
hold on
bif2=readp('fdfo.2');
plot(bif2(:,5),bif2(:,9));
hold on
bif3=readp('fdfo.3');
plot(bif3(1:374,5),bif3(1:374,9));
hold on
bif6=readp('fdfo.6');
plot(bif6(:,5),bif6(:,11));
hold on