Plots using contourf in matlab

I have a matrix P (10,3)

X = (:,1); Y = (:,2); Z = (:,3);

I am using contourf(X,Y,Z,'LineColor','none')

But is shows the error "Error using contourf Z must be at least a 2x2 matrix."

Please help. How to slove this

Answer 1

[Star Strider]

Try something lilke this —

X = P(:,1); 
Y = P(:,2); 
Z = P(:,3);
Xv = linspace(min(X),max(X),numel(X))
Yv = linspace(min(Y),max(Y),numel(Y))
[Xm,Ym] = meshgrid(Xv,Yv);
Zm = griddata(X,Y,Z,Xm,Ym);

figure
contourf(Xm, Ym, Zm)

.