MATLAB: Asterisk wildcard doesn’t work with fullfile

dirfilefullfileMATLABwildcard

I'm trying to get the file names in a folder that end in a specific way (100MVC.otb+). AFAIK the way to do this is like this:

signals=dir(fullfile(signalDir,'*100MVC.otb+'));

But for some reason it seems like it can't understand the wildcard and it never finds a match. The same happens when I try to list the files:

>> ls(fullfile(signalDir,'*100MVC.otb+'))
No matches for pattern 'Test02_20200522\*100MVC.otb+'.

Any idea why it's not working, or how to solve it?

Best Answer

I mocked up a folder inside my current directory named "Test02_20200522" with contents "file1_100MVC.otb+" to "file4_100MVC.otb+".

Your code works so long as I don't change my current directory. When I do, it can no longer find the folder and returns the same error message you are seeing. To avoid this, I recommend using the full path name for signalDir, not just the final folder name.

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MATLAB: Dir() function not working

It doesn't mix up the order. It sorts it, which is not what you expect. Sorting by character means that you get all upper case first, followed by lower case.

I suggest you use something like natsort (search the file exchange for it) to sort the output of dir.

Note that dir also relies on the operating system, meaning that any changes in windows might cause differences. It is not a good idea to rely on the output order.

MATLAB: Fullfile to contain multiply file extension

Try:

filePatternCSV = fullfile(handles.sourceFolder, '*.csv'); 
csvFiles = dir(filePatternCSV); 
filePatternXLS = fullfile(handles.sourceFolder, '*.xls'); 
xlsFiles = dir(filePatternXLS);
filePatternODS = fullfile(handles.sourceFolder, '*.ods'); 
odsFiles = dir(filePatternODS);
allFiles= vertcat(csvFiles,xlsFiles,odsFiles);

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