Based on the response table of topographic factor,an iwtial correlationmatrix can be formed,and then succesive regression is processed for the given ini-tial correlation matrix in obtaining the optimal result.

• 根据立地因子反应表,建立初始相关矩阵R~(0),然后根据初始形成的相关矩阵R~(0)进行逐步回归,对该矩阵逐次变换得到最优结果。