2D histogram via imagesc

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Claudia Scatigno
Claudia Scatigno le 18 Oct 2018
I have an M = n x p matrix including zero and nonzero elements.
Starting from this matrix, I need to create an imagesc, which partitions the n dimension into N bins, p into P bins, and associates to each (n/N,p/P) 2D-bin the corresponding number of nonzero elements in this particular submatrix of M.
Any hint would be highly appreciated.

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