getfolderstructure: Extracts folderstructure based on data directory.
Description
Extracts folderstructure based on data directory. This is used when
accelerometer files are stored in a hierarchical folder structure and
the user likes to have a reference to the exact position in the folder
tree, rather than just the filename. Function not
intended for direct use by package user.
Argument datadir as used in various other functions in GGIR
referencefnames
vector with filename to filter on
Value
List with items:
itemfullfilenamesvector with all full paths to the folders
including the name of the file itself
itemfoldernamevector with only the names of the folder in which each
file is stroed (so only the most distal folder in the folder tree)