【摘要】 本文我们首先构造了两个递归的回归模型 ,然后将其应用于湖南省城镇居民消费性支出 ,得到了较好的拟合效果更多还原

【Abstract】 In the paper, we first construct t wo recursive kernel regression models. By applying them to urban household′s consumption expenditure of Hunan province, we prove that these model can improve fitting effects and reduce predicting errors.更多还原