figure('color','w');
plot(Newtons(1:120,1),Newtons(1:120,2),'k^-');
hold on;
plot(Newtons(1:123,3),Newtons(1:123,4),'rs-');
hold on;
plot(Newtons(1:121,5),Newtons(1:121,6),'bo-');
hold on;
plot(Newtons(1:121,7),Newtons(1:121,8),'gv-');
hold off;
xlabel('time, days');
ylabel('cumulative Newton iteration steps');
legend('EDFM', 'pEDFM, method 1', 'pEDFM, method 2','pEDFM, method 3');% ,'pEDFM, case 3'