Summing output of for loop.

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Dougie 2012-4-29

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评论： Tilkesh 2017-4-14

I have a for loop producing an n x m matrix E fr every time the for loop runs. But i then need to sum all the output matrices from the for loop. Can anyone suggest how to do this. -I dont need to save the individual matrices, just the sum of them. Thanks

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Jan 2012-4-30

What have you tried and which problem has occurred? Actually the procedure is trivial: Create the new matrix in each iteration and sum it up.

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Geoff 2012-4-30

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I gather you have the following situation, or something similar.

nloops = 100;
sumE = zeros(n,m);
for i = 1:nloops
    % This loop generates a new E
    E = [];
    for j = 1:n*m
      % magic goes here
    end
    % Now you want to sum E
    sumE = sumE + E;
end