款进行多元线性回归分析软件.可以完成多元回归模型的参数估计和统计检验,可以通过Excel获取外部数据,并且能够把计算结果保存成xls文件，计算结果的差方图--Conducted a multiple linear regression analysis software. Can complete multiple regression model parameters estimates and statistical test, you can access external data through Excel and be able to save the results into the calculation xls files, calculating the difference between the results of Quadrant