How to acieve a scatter plot like this.

Hi I have to do a scatter plot where each point in e.g. the xy-plane consist of determined value. My question is how do i plot a discrete amout of values where each of the values is related to a x, y-coordinate. I have seen reports with plots similar to the one presenten in the picture:

Hope to hear your input.

Best regards.

Answer 1

[Star Strider]

Use the surf (link) function and the view (link) function:

M = nan(50);
M(10:40, 5:30) = rand(31,26);

figure
surf(M)
view(0,90)
axis([1  size(M,1)    1  size(M,2)])
grid on

[Andreas Christensen Sørensen]

Thank you very much, appreciate it :)

[Star Strider]

As always, my pleasure!

Answer 2

[Stephen23]

One simple option is to use pcolor:

>> M = randi([-3,6],5,7);
>> M([3,4,5,9,10,15]) = NaN;
>> pcolor(1:7,1:5,M)

You can view many plotting functions here:

https://www.mathworks.com/help/matlab/creating_plots/types-of-matlab-plots.html

[Andreas Christensen Sørensen]

Thank you very much, appreciate it :)