How to plot pressure contour?

Hey guys, I have got pressure (p) as a dependent variable which depends on 'r', 'z' & 't'.

I am using the following code for plotting the contour of velocity (vc) and its working well. The code is:

[x,y]=meshgrid(r);

[rad,rad]=cart2pol(x,y);

contour(rad,vc(:,23,34));

But doing the same thing with pressure (p) shows nothing in the plot & plotting pressure against 'r' or 'z' gives fine results.

Please help me regarding this. Any suggestion will be greatly appreciated.

Thanks!!

[KSSV]

check your pressure data...

[Udit Srivastava]

had the pressure data would have been wrong, I would not have got the correct pressure plot.

[KSSV]

Does it have numbers? What is it's size?

[Udit Srivastava]

this is the code.