make matlab read the files in order?

I am using a code to read and calculate mass center. but the code read file with this oder:

Now reading C:\Users\shape_01.dat

Now reading C:\Users\shape_010.dat

Now reading C:\Users\shape_0100.dat

Now reading C:\Users\hape_0101.dat

so i get wrong orders for my output results.

because i need matlab to process my file in normal order: 1 2 3 4 4 5 ...

please is there any suggestion how to solve that?

[Stephen23]

@RBC MAN: are those binary numbers?

Or are they decimal numbers from which you happen to have only shown numbers using the digits 0 and 1 ?

[Tesla]

Not binary, they are decimal, I just share the first 4 file, i have in total 501 files.

indeed it looks like that

Now reading C:\Users\shape_01.dat

Now reading C:\Users\shape_010.dat

Now reading C:\Users\shape_0100.dat

Now reading C:\Users\shape_0101.dat

Now reading C:\Users\shape_0102.dat

Now reading C:\Users\shape_0103.dat

Now reading C:\Users\shape_0104.dat

Now reading C:\Users\shape_0105.dat

Now reading C:\Users\shape_0106.dat

Now reading C:\Users\shape_0107.dat

........

Answer 1

[Stephen23]

Adapting from the examples in the NATSORTFILES documentation:

..
S = dir(fullfile(myFolder,'shape_0*.txt'));
S = natsortfiles(S); % alphanumeric sort by filename
for k = 1:numel(S)
  baseFileName = S(k).name;
  ..
end

[Tesla]

Now working! thank you very much, you saved me!

Answer 2

[Walter Roberson]

See https://www.mathworks.com/matlabcentral/fileexchange/47434-natural-order-filename-sort