First lets create some fake data files just for testing this code:
writematrix(1:2,'file1.txt')
writematrix(3:4,'file2.txt')
writematrix(5:6,'file9.txt')
writematrix(7:8,'file10.txt')
Now lets get a list of those filenames:
P = '.'; % absolute or relative path to where the files are saved
S = dir(fullfile(P,'file*.txt'));
S = natsortfiles(S); % download from <www.mathworks.com/matlabcentral/fileexchange/47434-natural-order-filename-sort>
for k = 1:numel(S)
F = fullfile(S(k).folder,S(k).name);
V = readmatrix(F);
S(k).data = V;
end
M = vertcat(S.data)
