Data Visualisation Basic with x-y coordinate and z data value

Hello, suppose I have x-y coordinate and z value as the grades of the points. How can I visualize my data in 2-D colormap ? (I want to show x-y cordinate and different colors for different values at every points inside the image).

Please help.

Answer 1

[Star Strider]

It depends what ‘x’, ‘y’ and ‘z’ are, and what you want.

If they are vectors and have sufficient density, this may work:

figure
scatter3(x, y, z, [], z, 'filled')
view(0, 90)

If they are vectors and are gridded, just use reshape to form them into matrices, then use the contour function. If they are not gridded, first use griddata to form them into matrices, then use contour.

It all depends on what you are starting with, and what you want as the end result.