def valuerefs(self):
        return self.data.values()
Convert the data frame to a mat file
dataset/ETHPy150Open azoft-dev-team/imagrium/env/Lib/weakref.py/WeakValueDictionary.valuerefs--crossover with--dataset/ETHPy150Open slinderman/pyhawkes/data/chicago/parse_data.py/dataframe_to_mat