How can I use Loop to read multiple matrixes and sum rows?

Hello there.

I have the A.mat file that contains 28 different matrices (A1,A2...A28) each one with 100 rows x 100 columns. I would like to sum rows of these matrices to get 28 row-vector, using loop.

Any clue?

Answer 1

[Rik]

You can load the mat file to a struct and loop through the fields. Now you also immediately see why numbered variables are a bad idea.

S=load('A.mat');
A=zeros(100,100,28);
for n=1:28
    fn=sprintf('A%d',n);
    A(:,:,n)=S.(fn);
end

Now you have a 3D array where you can trivially sum:

B=sum(A,3);

[Tiago Furlanetto]

Rik,

many thanks!!!

[Rik]

You're welcome.

If my answer solved your issue, please consider marking it as accepted answer. If not, feel free to comment with your remaining questions.