title: Matlab program to see if files added yesterday have been added again
body: <p>Is there an efficient way in Matlab to check if recently changed folders have been changed again recently?</p>
  
  <p>e.g. In folder X a file Y was added yesterday. If today file Z was added to the same location then that is correct, if it hasn't been then produce raise error flag. And if folder A has not had files added for days/weeks then has a file B added, raise a flag also.</p>