How to load files in order

I am looking for How to load files in order

please find attached file

If i = 1:5

data = importdata('RR.data.(i)');

That has error

Answer 1

[Stephen23]

Use either of the methods shown in the documentation:

https://www.mathworks.com/help/matlab/import_export/process-a-sequence-of-files.html

For example:

N = 2; % number of files
C = cell(1,N);
for k = 1:N
    F = sprintf('RR.data.%u',k);
    C{k} = dlmread(F);
end
M = vertcat(C{:});

Giving:

>> M
M =
     0   850     0
     0   850     0