Hello , I have an issue with getting everything to show on my figure correctly. I made four subplots but for some reason my 4th subplot is not showing and also the legend, text and title is not showing correctly either

Hello ,

I have an issue with getting everything to show on my figure correctly. I made four subplots but for some reason my 4th subplot is not showing and also the legend, text and title is not showing correctly either

please help

Here's my code

%% Plot
 figure;
 plot(t,x11,'-*'),hold on;
 plot(t,x(:,1),'-')
 title('x1 vs Non-linear')
 legend({'x1','Non-linear'},'Location','northeast')
 txt = {'eq point [0.5,0.5]','initial point[0.51,0.51]'};
 text(.4,10,txt)
 subplot(2,2,1)

 plot(t,x12,'-*'),hold on;
 plot(t,x(:,2),'-')
 title('x2 vs Non-linear')
 legend({'x2','Non-linear'},'Location','northeast')
 txt = {'eq point [0.5,0.5]','initial point[0.51,0.51]'};
 text(.4,10,txt)
 subplot(2,2,2)
 
 plot(t,x13,'-*'),hold on;
 plot(t,x1(:,1),'-')
 title('x1 vs Non-linear')
 legend({'x1','Non-linear'},'Location','northeast')
 txt = {'eq point [0.5,0.5]','initial point[1,1]'};
 text(.4,10,txt)
 subplot(2,2,3)

 plot(t,x14,'-*'),hold on;
 plot(t,x1(:,2),'-');
 title('x2 vs Non-linear')
 legend({'x2','Non-linear'},'Location','northeast')
 txt = {'eq point [0.5,0.5]','initial point[1,1]'};
 text(.4,10,txt)
 subplot(2,2,4)

Answer 1

[dpb]

You plot() BEFORE you create the subplot; so the first plot is killed/destroyed after it is made when the subplot(2,2,1) call is made--then what is intended to be the second plot is plotted into that subplot axes. Same thing for the subsequent -- each is plotted into the subplot axes creathed ahead of it. There's no plot() command after the last suplot() axes is created; hence it's empty.

MORAL: Create the subplot() axis FIRST, then plot into it.

figure;
subplot(2,2,1)
plot(t,x11,'-*'),hold on;
plot(t,x(:,1),'-')
title('x1 vs Non-linear')
legend({'x1','Non-linear'},'Location','northeast')
txt = {'eq point [0.5,0.5]','initial point[0.51,0.51]'};
text(.4,10,txt)
 
subplot(2,2,2)
plot(t,x12,'-*'),hold on;
plot(t,x(:,2),'-')
...

[Mohamed AL Sager]

That helped, however the text is not showing in some of the graphs still

%% Plot

figure;

subplot(2,2,1)

plot(t,x11,'-*'),hold on;

plot(t,x(:,1),'-')

title('x1 vs Non-linear')

legend({'x1','Non-linear'},'Location','northeast')

txt = {'eq point [0.5,0.5]','initial point[0.51,0.51]'};

text(.4,10,txt)

subplot(2,2,2)

plot(t,x12,'-*'),hold on;

plot(t,x(:,2),'-')

title('x2 vs Non-linear')

legend({'x2','Non-linear'},'Location','northeast')

txt = {'eq point [0.5,0.5]','initial point[0.51,0.51]'};

text(.4,10,txt)

subplot(2,2,3)

plot(t,x13,'-*'),hold on;

plot(t,x1(:,1),'-')

title('x1 vs Non-linear')

legend({'x1','Non-linear'},'Location','northeast')

txt = {'eq point [0.5,0.5]','initial point[1,1]'};

text(.4,10,txt)

subplot(2,2,4)

plot(t,x14,'-*'),hold on;

plot(t,x1(:,2),'-');

title('x2 vs Non-linear')

legend({'x2','Non-linear'},'Location','northeast')

txt = {'eq point [0.5,0.5]','initial point[1,1]'};

text(.4,10,txt)

[dpb]

Use the CODE button to format the code to be legible.

The cut 'n paste ended up with the first subplot() call in front of the figure command -- reordered above.

Just go through logically and in sequence and get what you want on each plot in the sequence after beginning each supbplot().

It's wise to save the axes handles created so you can refer to the desired axis later on if want to add or modify something on one.