I have 3 data inputs, x,y,z. I also had X and Y=Y' which are the min:int:max values. Because I only have a few points, I tried to do Z= griddata(x,y,z,X,Y) to interpolate the results. But it comes up with an error saying that not all points could converge.

When I type surf(X,Y,Z) a new window opens and I get a blank graph.

Any ideas why this may be happening?

Cheers