Adding multiple rows of a cell array

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Chris Dan
Chris Dan 2020-7-12
评论： Star Strider 2020-7-12
Hello, I have a 5x1 cell array, in which each cell is a 6x64 double.
For each cell, I want to add the rows in this style,
1st, 3rd and 5th rows addded together to make one row
2nd 4th and 6th row added together to make one row.
Can it be done without loop?
I am attaching the file . I don't have any code written yet, because I dont know how to do it..
Does anybody know?

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采纳的回答

Star Strider
Star Strider 2020-7-12
Try this:
D = load('NumericalFourierForce.mat');
Numerical_FourierForce = D.Numerical_FourierForce;
Out = cellfun(@(x){sum(x(1:2:end,:)); sum(x(2:2:end,:))}, Numerical_FourierForce, 'Uni',0);
Out{1}{1,:} % Check Output
Out{1}(2,:) % Check Output
Out{5}{1,:} % Check Output
Out{5}(2,:) % Check Output
Notice that there are no explicit loops. (There are obviously loops within cellfun.)

更多回答（1 个）

madhan ravi
madhan ravi 2020-7-12
编辑：madhan ravi 2020-7-12
Edit: cellfun() is a loop in disguise by the way.
for k = 1:numel(cell_array)
cell_array{k}(end+1,:) = sum(cell_array{k}(1:2:5,:));
cell_array{k}(end+1,:) = sum(cell_array{k}(2:2:6,:));
end

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