how to plot a 3-dimensional matrix
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Let say i have a 3-d matrix rand(3,3,3);
I want to see this 27 values in a box (a plot where we define all the three z-axis) from x=1:3; y=1:3, z=1:3;
can anybody help?
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Adam Cutbill
el 16 de Sept. de 2014
Editada: Adam Cutbill
el 16 de Sept. de 2014
X=rand(3,9,3); %(3 coords, 9 points, 3 groups)=27 points.
X=reshape(X,[],3);
plot3(X(:,1),X(:,2),X(:,3),'.');
In general, I'd avoid a 3D matrix. What you're really doing with a 2D matrix is accessing the point and the coordinate (2 indices, i=point,j=coordinate). You can have as many dimensions in the coordinates as you want. If you want to go 3D, then you're accessing the group, the point and the coordinate (i,j,k). Make sure this is what you want if you're using 3D matrices.
Not sure what you mean about a box but I don't think rand(3,3,3) is what you are after.
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Huy Kien Bui
el 1 de Abr. de 2019
Thank you so much, Adam Cutbill.
It's work in my case.
A little bit change in code:
%% B: 3D matrix 1x258x8
X=reshape(B,[],8); %% X: 2D matrix 258x8
[xx yy] = meshgrid(1:8,1:258);
plot3(xx,yy,X,'*');
![Capture.JPG](https://www.mathworks.com/matlabcentral/answers/uploaded_files/211368/Capture.jpeg)
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