How to use pcolor in matlab in this example?

[Sprinceana]

>> x=[1 2; 0 1] % defining 3 matrix

x =

1 2
0 1

>> y=[1 0; 0 1]

y =

1 0
0 1

>> z=[ 2 2 ; 1 1]

z =

2 2
1 1

>> mesh(x,y,z) % 3D graph with mesh for the 3 matrix (x,y and z)
>> k=1:1:100 % we want to plot the curves z=k with k integer number on the plane (x,y)

>> contour(x,y,z,[k])

My question is how can I use pcolor for my 3 matrix?

I tried :

>> pcolor(x,y,z)

I receive this error:

??? Attempt to execute SCRIPT surface as a function.

Error in ==> pcolor at 76
hh = surface(x,y,zeros(size(c)),c,'parent',cax);

[us]

"Sprinceana "

> >> pcolor(x,y,z)
> I receive this error:
> ??? Attempt to execute SCRIPT surface as a function.
> Error in ==> pcolor at 76
> hh = surface(x,y,zeros(size(c)),c,'parent',cax);

a hint:
- it seems you have a proprietary SURFACE function somewhere sitting around...

which surface -all;
% should show you the built-in

us

[Sprinceana]

Thanks us!