base.py 文件源码

def fit(self, X, y, *args, **kwargs):
        X = np.asanyarray(X)
        y = np.asanyarray(y)

        # Centering Data
        X, y, X_offset, y_offset, X_scale, precompute, Xy = \
            _pre_fit(X, y, None, self.precompute, self.normalize,
                     self.fit_intercept, copy=False)

        # Calling the class-specific train method
        self._fit(X, y, *args, **kwargs)

        # Fitting the intercept if required
        self._set_intercept(X_offset, y_offset, X_scale)

        self._trained = True
        return self