def __str__(self):
        return str(self.tuple)
Fit and save model parameters based on given data.
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/contrib/gis/gdal/envelope.py/Envelope.__str__--crossover with--dataset/ETHPy150Open UDST/urbansim/urbansim/models/dcm.py/MNLDiscreteChoiceModel.fit