普通最小二乘法回归及诊断-sas数据分析系统教程

普通最小二乘法回归及诊断 data FrenchEc; input x1-x3 y@@; cards; 149.3 4.2 108.1 15.9 161.2 4.1 114.8 16.4 171.5 3.1 123.2 19.0 175.5 3.1 126.9 19.1 180.8 1.1 132.1 18.8 190.7 2.2 137.7 20.4 202.1 2.1 146.0 22.7 212.4 5.6 154.1 26.5 226.1 5.0 162.3 28.1 231.9 5.1 164.3 27.6 239.0 0.7 167.6 26.3 ; run; proc reg data=FrenchEc; model y=x1-x3/tol vif collin; run;