How to concatenate multiple .mat files and generate a 3D matrix?

1 view (last 30 days)
I have 100 files which are 30482x43 (number of data x layers), and what I am trying to do is make a single 30482x100x43 matrix.
I would appreciate your help please!!

Accepted Answer

Stephen23 on 3 Aug 2022
Edited: Stephen23 on 3 Aug 2022
"I have 100 files ..."
which are probably named using some sequential numbering, so you will need to take that into account in the code:
P = 'absolute or relative path to where the files are saved';
S = dir(fullfile(P,'*.mat'));
S = natsortfiles(S); % download:
for k = 1:numel(S)
F = fullfile(P,S(k).name);
L = load(F);
S(k).data = L.nameOfTheVariableWhichYouDidNotTellUs;
A = permute(cat(3,,[1,3,2]);

More Answers (1)

KSSV on 3 Aug 2022
matFiles = dir('*.mat') ;
N = length(matFiles) ;
iwant = zeros(3048,43,N) ;
for i = 1:N
S = matfile(matFiles(i).name) ;
iwant(:,:,i) = S.myvar ; % myvar is the variable in your mat file


Find more on Data Type Conversion in Help Center and File Exchange




Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!