How to load multiple .mat files into workspace in order to concatenate matrices and calculate mean

Hello,

I have multiple correlation matrices (one for each person in my experiment) and am trying to create the mean correlation matrix but don't know how to do this.

I have saved each 11 x 11 correlation matrix as a .mat file and so have one for each subject (201.mat, 202.mat, 203.mat, 204.mat, etc.). The first problem I am running into is loading all of the matrices at once into the matlab workspace in order to concatenate them into a 3-D array and then be able to calculate the mean. Each time I load a new matrix it overwrites the old matrix. How do I load all the matrices into the workspace at once? And then how would I concatenate all the matrices to create a 3-D array and then compute a mean matrix?

Any help would be much appreciated. Thank you.

Answer 1

[Azzi Abdelmalek]

M=zeros(11,11,10)  % for 10 files
p=0;
for k=201:210
    p=p+1;
    A=load(sprintf('%d.mat',k));
    s=fields(A)
    M(:,:,p)=A.(s)
end

[María Maldonado Gil]

I don´t think this works. I´ve tried on my case and it does not run ok, as it says that is unable to find the .mat files. Don´t know why