MATLAB Answers


Heatmap for 2d coordinates

Asked by Herbert
on 19 Jul 2013

Hello, I have a Matrix of dimensions (2xN) which consists of 2 dimensional Cartesian coordinates and I would like to create a heat map of this. Do you know any way to do this?

Thanks in advance!


What do you want a heat-map of? A third variable? The densiy of the scatter points?

With heat map I mean a plot where e.g. red color indicates that a lot of points from the matrix are in a certain neighbourhood and blue would mean that all the other coordinates are far away.



No products are associated with this question.

1 Answer

Answer by the cyclist
on 19 Jul 2013

Without more detail, I would just point you to the image() command. Is that helpful?

  1 Comment

That for your suggestion. I added a comment what I mean with "heat map" I hope its now a bit clearer, sorry for that. Unfortunately the image command does not provide this.

Join the 15-year community celebration.

Play games and win prizes!

Learn more
Discover MakerZone

MATLAB and Simulink resources for Arduino, LEGO, and Raspberry Pi

Learn more

Discover what MATLAB® can do for your career.

Opportunities for recent engineering grads.

Apply Today

MATLAB Academy

New to MATLAB?

Learn MATLAB today!