Loading files with different names in MatLab

I'm trying to read .vhdr files into MatLab in a loop function, but they all contain a different date in the filename. How can I get this to work? It's in the structure below where it starts with '01_' then has the subject number '####', then 'rest' and then the date of collection '02202021' then the .vhdr filetype.

File name structure: '01_####_rest_02202021.vhdr'

I have defined my subject numbers above in a variable called subject.

Such as:

subject = {'00001', '00002', '00003'}

EEG=poploadbv('C:/Users/M/Datasets',['01_',subject,'_Rest_','*.vhdr']);

Answer 1

[Jan]

Do you want to load all files inside a folder?

Folder   = 'C:/Users/M/Datasets';
FileList = dir(fullfile(Folder, '*.vhdr'));
Data     = cell(1, numel(FileList));
Subject  = cell(1, numel(FileList));
for iFile = 1:numel(FileList)
    FileName = FileList(iFile).name;
    File     = fullfile(FileList(iFile).folder, FileName);
    Data{iFile} = poploadbv(File);
    tmp            = splitstr(FileName, '_';)
    Subject{iFile} = tmp{2};
end

[Meredith Abrams]

The files needed are actually contained within subdirectories by the subject number. So, inside Datasets is a folder for 00001 within that folder is the .vdhr that I need. Each file structure is the same, I just need the .vhdr file for each subject. The rest of the code should run per participant and then loop back around to restart for 00002.

[Jan]

@Meredith Abrams: Can you use the code I've suggested to your needs?

[Meredith Abrams]

Hi there! Thank you so much! This code does not fit my needs as all of the data are stored in separate directories rather than a single directory. I may change the way they are stored and try this though.

[Jan]

Or use:

FileList = dir(fullfile(Folder, '**', '*.vhdr'));

[Image Analyst]

I believe using two stars :

Folder   = 'C:/Users/M/Datasets';
FileList = dir(fullfile(Folder, '**/*.vhdr'));

should work. Does it not?