recursiveFileList function help please

Trying to use the function recursiveFileList but it doesnt exist how can i use it help thanks.

imageDir=[mltRoot, '/dataSet/att_faces'];

faceData=recursiveFileList(imageDir, 'pgm');

fprintf('Reading %d face images from %s...', length(faceData), imageDir)

tic

for i=1:length(faceData)

%   fprintf('%d/%d: file=%s\n', i, length(faceData), faceData(i).path);

  faceData(i).image=imread(faceData(i).path);

end

fprintf(' ===> %.2f sec\n', toc);

fprintf('Saving faceData.mat...\n');

save faceData faceData

Answer 1

[Geoff Hayes]

Haziq = perhaps consider an alternative to recursiveFileList (since you don't have the code for it). See Jonathan Sullivan's FEX submission dir2 for an example of a recursive file "finder".

Answer 2

[Image Analyst]

You can use genpath(). See attached example where it gets a list of all subfolders and then goes into them finding filenames.