t1=1:365;
t2=200:564;
t3=400:764;
t4=600:964;
t5=800:1095;
plot(t1,y);
hold on;
plot(t2,y);
hold on;
plot(t3,y);
hold on;
plot(t4,y);
hold on;
plot(t5,y);
t1=1:365;
t2=200:564;
t3=400:764;
t4=600:964;
t5=800:1095;
plot(t1,y);
hold on;
plot(t2,y);
hold on;
plot(t3,y);
hold on;
plot(t4,y);
hold on;
plot(t5,y);