* machine.head.sas, machine head experiment, Table 18.3, p684; ; * Data as arranged in Table 18.3; data machine; input machine @@; do head=1 to 4; do rep=1 to 4; drop rep; input y @@; output; end; end; lines; 1 6 2 0 8 13 3 9 8 1 10 0 6 7 4 7 9 2 10 9 7 12 2 1 1 10 4 1 7 9 0 3 4 1 3 0 0 5 5 10 11 6 7 8 5 0 7 7 2 5 4 4 11 0 6 4 5 10 8 3 1 8 9 4 0 8 6 5 5 1 4 7 9 6 7 0 3 3 0 2 2 3 7 4 0 ; * Data by observation; data machine; input machine head y; lines; 1 1 6 1 1 2 1 1 0 1 1 8 1 2 13 1 2 3 1 2 9 1 2 8 1 3 1 1 3 10 1 3 0 1 3 6 1 4 7 1 4 4 1 4 7 1 4 9 2 1 10 2 1 9 2 1 7 2 1 12 2 2 2 2 2 1 2 2 1 2 2 10 2 3 4 2 3 1 2 3 7 2 3 9 2 4 0 2 4 3 2 4 4 2 4 1 3 1 0 3 1 0 3 1 5 3 1 5 3 2 10 3 2 11 3 2 6 3 2 7 3 3 8 3 3 5 3 3 0 3 3 7 3 4 7 3 4 2 3 4 5 3 4 4 4 1 11 4 1 0 4 1 6 4 1 4 4 2 5 4 2 10 4 2 8 4 2 3 4 3 1 4 3 8 4 3 9 4 3 4 4 4 0 4 4 8 4 4 6 4 4 5 5 1 1 5 1 4 5 1 7 5 1 9 5 2 6 5 2 7 5 2 0 5 2 3 5 3 3 5 3 0 5 3 2 5 3 2 5 4 3 5 4 7 5 4 4 5 4 0 ; run;