Polar coordinate plot in Matlab

I have multiple theta and rho stored as matrices in variable out. I want to plot all of them using polar function in Matlab R2015b.

I'm new to Matlab and so far I did this :

figure()
subplot(1,3,1)
polar(out(1),out(2),'*')
subplot(1,3,2)
polar(out(3),out(4),'*')
subplot(1,3,3)
polar(out(5),out(6),'*')

I've two questions:

How can I combine them into a single polar plot, i.e one figure instead of three with '*' position intact ?

How can I remove the lower part of polar plot so that I can have a semicircle instead of full plot ? Is it possible to customize polar plot labels like removing the degree labels ?

[Walter Roberson]

Can you switch to polarplot() instead?

[darova]

What about

polar(out(1:2:5), out(2:2:6))

[rohit]

@Walter, polarplot() is not available in R2015b.

@darova, it worked. Any idea about second question?

[darova]

I don't understand. What do you want to remove?

[rohit]

labels in the figure like 0, 30, 60 .... 330