How to print all loaded files in the workspace?

Hi, I am still new to MatLab and I am currently stuck on how to load in files using a 'for' loop. I can get the loop to work, however it only prints the last data file in the work space and not all of them. Here is my code:

for n = [1,2,4]
     
        filename1 = sprintf('SECR%d0_dt.mat',n);
        filename2 = sprintf('SECX%d0_dt.mat',n);
        S = load(filename1);
        S2 = load(filename2);      
end

Where the files I want to input are 'SECR10_dt.mat','SECR20_dt.mat' and 'SECR40_dt.mat' and the same for SECX...

I understand that as there is only a total of six files that it will be easy to just input them separately, but I this code will become useful for me later on.

Any help is greatly appreciated, thanks!

Answer 1

[Stephen23]

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

Adapting the example from the documentation slightly:

V = [1,2,4];
N = numel(V);
C = cell(N,2); % preallocate!
for k = 1:N
    f1 = sprintf('SECR%d0_dt.mat',V(k));
    f2 = sprintf('SECX%d0_dt.mat',V(k));
    C{k,1} = load(f1);
    C{k,2} = load(f2);      
end

The imported data wil be available in the cell array C:

https://www.mathworks.com/help/matlab/matlab_prog/access-data-in-a-cell-array.html

If all of the load-ed structures have the same fields, then you could convert them into one non-scalar structure, which has some convenient syntaxes for accessing the data:

https://www.mathworks.com/help/matlab/matlab_prog/access-multiple-elements-of-a-nonscalar-struct-array.html

[Daniel Tanner]

This is exactly what I wanted, thank you! To improve it further, as the only variation in data files is either SECX or SEXR followed by either 10, 20 or 40, is there a way to complete this without having to create two filenames and using just the sprintf function?

[Stephen23]

You could use a loop, but for just two names this likely to be more complex.

You could use dir, if that returns the filenames that you require.

Keep in mind that calling sprintf and load twice might be the simplest solution...