cumsum of a matrix

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Mate 2u
Mate 2u 2012-5-25
编辑： Muhammad Furqan 2017-10-25
Hi there I have a nxm matrix. I want to do the cumsum of each column, then all of them added up to give one total cumsum.
Any help?

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回答（2 个）

Wayne King
Wayne King 2012-5-25
X = 1:100;
X = reshape(X,10,10);
X1 = cumsum(X(:));
the cyclist
the cyclist 2012-5-25
Is this what you mean?
M = rand(5,6);
S = sum(cumsum(M),2);
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Muhammad Furqan
Muhammad Furqan 2017-10-25
编辑：Muhammad Furqan 2017-10-25
M = rand(5,6); Mean that it creates random numbers of a matrix with 5 column and 6 rows. S = sum(cumsum(M),2); It generate commulative sum of the rows in one column. For example M = rand(2,3);
S = sum(cumsum(M),2); 1.02263280043603 2.03657698954441

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