SAS变换回归与二次回归通用旋转组合设计

Using SAS to transform quadratic regression universal rotary combination design experiment

阐述变换回归分析的基本原理,并应用SAS对回归旋转正交设计试验数据作统计分析。比较表明,SAS变换回归分析的结果与普通二次回归通用旋转设计的统计分析结果非常吻合,但是变换回归更加灵活直观,在未知非线性函数的信息场合,它是探索变量间非线性关系的锐器。

The paper describes the basic principle on transform regression and its application in quadratic regres- sion universal rotary combination design experiment by the TRANSREG procedure. Compared with the statistical anal- ysis of （ordinary） quadratic regression, it shows that general rotation and SAS Proc Transreg yield very consistent re- sults. But SAS Proc Transreg is more flexible and intuitive. It provides a better tool to explore the non -linear rela- tionship between the variables in the case of their nonlinear function unknown.