How can I combine plots in same axes?

I want to combine all plots in same axes, I tried to use hold on and hold off but it didn't work. Can anybody help me? Here's a part of the code:

for i=1:it

if i<=3

figure('Color','w');

hold on; box on; grid on;

params.flag_plot = 0;

npts = 41;

ec_max_vec = ec_max + linspace(0,abs(ec_max),npts);

Mtotal = zeros(npts,1);

Ntotal = zeros(npts,1);

for pt=1:npts

ec_max = ec_max_vec(pt);

x = fminbnd(@(x) EquilibriumVerification(x,ec_max,params,d,fy,Es,ey,Ast,b,h,ft,Ec,ec0,k3,fc,ecu),0,h,options);

[Fs,Fcc,Fct,Mc,Ms] = ComputeForcesAndMoments(ec_max_vec(pt),x,params,d,fy,Es,ey,Ast,b,h,ft,Ec,ec0,k3,fc,ecu);

Mtotal(pt) = Mc + Ms;

if (sign(Mc)~=sign(Ms))

disp('Here')

pause

end

Ntotal(pt) = Fs + Fcc + Fct;

end

plot(abs(ec_max_vec),abs(Mtotal)/100,'-b','DisplayName','Bending Moment (kN.m)')

plot(abs(ec_max_vec),Ntotal,'--r','DisplayName','Error (kN)')

l1 = legend;

set(l1,'Location','Southeast')

xlim([0 abs(ec_max_vec(1))])

xlabel('\epsilon_c_m_a_x','FontName',params.font_name,'FontAngle','italic','FontSize',params.font_size)

end

end

[Walter Roberson]

figure('Color','w');

needs to be moved to before the loop.

        l1 = legend;
        set(l1,'Location','Southeast')

those need to go after the outer loop

[Walter Roberson]

        xlim([0 abs(ec_max_vec(1))])

You will need to track the maximum abs() over all of the plots and xlim with that after the loops

Also you should probably

ylim auto

after all the loops

[Ana Carolina da Silva Pacheco]

Thank you so much, it worked.