rbf_base.py 文件源码

def refactor(self):
        """Compute factorization
        """
        eta = min(1e-5, 1e-16 * np.sqrt(la.norm(self.M, 1) * la.norm(self.M, np.inf))) * np.eye(self.M.shape[0])
        self.lupiv = la.lu_factor(self.M + eta)