* video game experiment; * chapter 12;
OPTIONS LINESIE = 75;
DATA VIDEO;
 INPUT ORDER DAY TRTMT Y;
 LINES;
 1 1 1  94
 1 2 3 100
 1 3 4  98
 1 4 2 101
 1 5 5 112
 2 1 3 103
 2 2 2 111
 2 3 1  51
 2 4 5 110
 2 5 4  90
 3 1 4 114
 3 2 1  75 
 3 3 5  94
 3 4 3  85
 3 5 2 107
 4 1 5 100
 4 2 4  74
 4 3 2  70
 4 4 1  93
 4 5 3 106
 5 1 2 106
 5 2 5  95
 5 3 3  81
 5 4 4  90
 5 5 1  73
;