Adding multiple rows of a cell array

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?

Answer 1

[Star Strider]

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.)

[Chris Dan]

Thanks :)

[Star Strider]

As always, my pleasure!

Answer 2

[madhan ravi]

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

[Chris Dan]

Thanks :)