/*------------------------------------------------------ | Impurity.SAS : Impurity data used in Lecture 3 | | | | | ------------------------------------------------------*/ options ps = 70 ls=75 nodate nonumber; data a; input batch impurity; cards; 1 3.28 1 3.09 1 3.03 1 3.07 2 3.52 2 3.48 2 3.38 2 3.43 3 2.91 3 2.80 3 2.76 3 2.85 4 3.34 4 3.38 4 3.23 4 3.31 5 3.28 5 3.14 5 3.25 5 3.21 6 2.98 6 3.01 6 3.13 6 2.95 ; run; proc print; run;