how to draw Bipartite Matrices and Projection Matrices.

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Hi
could you please let me know how can I draw the graphs like attached file?

Accepted Answer

Karim
Karim on 11 Jul 2022
such figures can be generated with the spy command. See below for an attempt to produce the top left figure using a bit of random data
A = zeros(450,450);
B = rand(450,800) < 0.01;
C = zeros(800,800);
M = [A B; B',C];
figure
spy(M)
  1 Comment
HASAN JAHANIFAR
HASAN JAHANIFAR on 11 Jul 2022
Thank you. could you please let me know, if I have a bipartite matrice can I draw such figure?

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