'Loads a dataset file
See params definition in *datamodel.Data.load()*'

def load_data(self, filename, force=True, sep=' DCTB ', format={'value': 0, 'row': 1, 'col': 2}, pickle=False):

    if force:
        self._data = Data()
        self._matrix_similarity = None
    self._data.load(filename, force, sep, format, pickle)
