[英]How to make cumsum this matrix
A= [ 1 2 4
2 3 1
3 1 2 ]
因此,上述矩陣的答案應為:
B = [ 1 3 7
9 12 13
16 17 19 ]
謝謝
精通cumsum
和reshape
可以使您到達那里:
B = reshape(cumsum(reshape(A', 1, [])), size(A))'
%# Equivalent to: B = A'; B = reshape(cumsum(B(:)), size(A))'
這樣產生:
B =
1 3 7
9 12 13
16 17 19
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