Combining charts for comparison

I want to combine 4 charts as per attached. The charts are extracted from running the attached code by changing K, C between 0 and 1. But the result shows 1 chart only. How to fix please?

Code to combine:

if true
fig = figure(10);
ax = axes(fig);
xlabel('\tau');
ylabel(' \Psi(0,\tau)');
title('Injection rate vs. K, C');
h1 = openfig('K0C0.fig','reuse');
h2 = openfig('K0C1.fig','reuse');
h3 = openfig('K1C0.fig','reuse');
h4 = openfig('K1C1.fig','reuse');
copyobj(h1.Children.Children,ax);
copyobj(h2.Children.Children,ax);
copyobj(h3.Children.Children,ax);
copyobj(h4.Children.Children,ax);
close(h1);
close(h2);
close(h3);
close(h4);
savefig('ratevsKC');
end
hold on
legend('K=0,C=0','K=0,C=1','K=1,C=0','K=1,C=1','location', 'southeast')

Combined result:

[Mohammad Sami]

Have you tried this answer ?

https://www.mathworks.com/matlabcentral/answers/764406-merge-saved-figures-into-one-figure-in-the-same-plot?s_tid=answers_rc1-2_p2_MLT

[Hai Nguyen]

I tried. In my case it showed blank in the combined figure.

Answer 1

[KSSV]

if true
fig = figure(10);
ax = axes(fig);
xlabel('\tau');
ylabel(' \Psi(0,\tau)');
title('Injection rate vs. K, C');
h1 = openfig('K0C0.fig','reuse');
h2 = openfig('K0C1.fig','reuse');
h3 = openfig('K1C0.fig','reuse');
h4 = openfig('K1C1.fig','reuse');
% GEt x and y data from figure
x1 = zeros(length(h1.Children.Children),1) ; 
y1 = zeros(length(h1.Children.Children),1) ; 
for i = 1:length(h1.Children.Children)
    x1(i) = h1.Children.Children(i).XData ; 
    y1(i) = h1.Children.Children(i).YData ; 
end
close(h1);
x2 = zeros(length(h2.Children.Children),1) ; 
y2 = zeros(length(h2.Children.Children),1) ; 
for i = 1:length(h2.Children.Children)
    x2(i) = h2.Children.Children(i).XData ; 
    y2(i) = h2.Children.Children(i).YData ; 
end
close(h2);
x3 = zeros(length(h3.Children.Children),1) ; 
y3 = zeros(length(h3.Children.Children),1) ; 
for i = 1:length(h3.Children.Children)
    x3(i) = h3.Children.Children(i).XData ; 
    y3(i) = h3.Children.Children(i).YData ; 
end
close(h3);

x4 = zeros(length(h4.Children.Children),1) ; 
y4 = zeros(length(h4.Children.Children),1) ; 
for i = 1:length(h4.Children.Children)
    x4(i) = h4.Children.Children(i).XData ; 
    y4(i) = h4.Children.Children(i).YData ; 
end
close(h4);

figure
plot(x1,y1,'-*r',x2,y2,'-sk',x3,y3,'-ob',x4,y4,'-dc'); 

savefig('ratevsKC');
legend('K=0,C=0','K=0,C=1','K=1,C=0','K=1,C=1','location', 'southeast')
end

[Hai Nguyen]

Thank you very much for the help.