How do I get a zoomed portion of a plot inside a plot, to enhance the visualization?

Suppose I have a plot, e.g. some function y(x) and I have plotted it. Now, if I wish to zoom a particular portion on the graph and show the zoomed portion inside the same plot (preferably by making a small box), is there any tool to do that with less computation (some GUI, etc.)?

[KSSV]

You can use subplot and restrict the axes range of your interest.

[Abhinav Sinha]

No, I do not need a subplot. This needs to be done in the same plot. Something like this, which I have done by creating a box of some dimension and then placing it in a suitable position.

[Yamina chbak]

Did you find how to do that ? because i need it too.

Answer 1

[Ahmet Cecen]

I am giving you the framework that you can use to do this the way you want. Every component of what you asked is there, they are just either placed or formatted differently. Tweaking and formatting is up to you.

r1 = [1:100]'.*rand(100,1);

figure;
a1 = axes();
plot(a1,r1);

a2 = axes();
a2.Position = [0.3200 0.6600 0.2 0.2]; % xlocation, ylocation, xsize, ysize
plot(a2,r1(50:70)); axis tight

annotation('ellipse',[.2 .3 .2 .2])
annotation('arrow',[.1 .2],[.1 .2])

legend(a1,'u')

[Abhinav Sinha]

Somewhat similar. Anyway, Thanks for your help.

Answer 2

[Junaid Qadir]

How can I zoom the subplot within same plot?