Z must be matrix, how to determine size of reshape

I have this x,y,z coordinates How to determine the size for reshape and make the surface of the coordinates? Thanks

[John D'Errico]

Are the points scattered? If so, then reshape is meaningless. Do they lie on a regular lattice in the (x,y) plane? You need that for the reshape to make sense.

[Naftalie Rianty]

If I enter the points using the scatter3 function the results are like this? Are there other ways besides reshape?

[Adam Danz]

Is there supposed to be an attachment or embedded image?

[Jan]

Please elaborate the meaning of "I have this x,y,z coordinates".

Answer 1

[Image Analyst]

If they're in a grid in an N-by-3 array, extract them first

x = xyz(:, 1);
y = xyz(:, 2);
z = xyz(:, 3);

Then try

surf(x, y, z);

If you don't have a regular grid, use scatteredInterpolant() to get one.