GetFileRoot:

-------------------------------------------------------------------------------
   Get the root name of a file (without the .xxx)
-------------------------------------------------------------------------------
   Form:
   r = GetFileRoot( s )
-------------------------------------------------------------------------------

   ------
   Inputs
   ------
   s             (1,:)   Filename or cell array of filenames

   -------
   Outputs
   -------
   r             (1,:)   Filename or cell array of filenames

-------------------------------------------------------------------------------

Children: