traveled_speeds_classifier.py 文件源码

def fit(self, X):
        _X = self.__aggregate_dataset(X)
        self.polynomial = np.polyfit(_X['expenses'].astype(np.long),
                                     _X['distance_traveled'].astype(np.long),
                                     3)
        self._polynomial_fn = np.poly1d(self.polynomial)
        return self