MATLAB: How can i add 2 row

add row to row

A=[-1,-1,0,0,0;0,0,0,-1,0;0,1,-1,0,-1;0,0,1,0,0;1,0,0,1,1]

With that matrix how can i add row to row command (code)

And in any kind of matrix?

Best Answer

A(FirstRow,:) + A(SecondRow,:)

Or if you want to get fancier,

sum(A([FirstRow, SecondRow],:))

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If I understood correctly:

Ax = randi([0 1], 4, 960);  %Demo data. No way I'm reformating your example to make it valid matlab syntax. 
[row, col] = find(A);
blockidx = discretize(col, 1:60:size(A, 2));
Bx = accumarray([row, blockidx], col, [], @(c) {sort(c).'})

Note: I'm not working on the whole cell array here, just one of these 4x960 matrix as I've not understood what that had to do with the question. Possibly, you just want to above in a loop (or cellfun) operating over each element of the cell array.

Best Answer

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