3D scatterplot with marker color as a function of fourth variable

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Hello,
I would like to make a scatterplot with the variables x, y, and z. The color of the marker should be determined by the value of variable a.
What's the best way to do that?
Cheers,
Tim

Accepted Answer

Scott MacKenzie
Scott MacKenzie on 7 May 2021
Edited: Scott MacKenzie on 7 May 2021
Assuming you want a separate color for each point...
x = rand(1,100);
y = rand(1,100);
z = rand(1,100);
a = 1:100;
scatter3(x,y,z,50,a,'filled');
colorbar;

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