* steel bar experiment;   *Chapter 7;
OPTIONS LINESIZE=75;
DATA STL;                                                               
 INPUT  A B C  Y;
 LINES;
 1 1 1   6
 1 1 1   9
 1 1 1   1
 1 1 1   3
 2 1 1   4
 2 1 1   6
 2 1 1   0
 2 1 1   1
 1 1 2   6
 1 1 2   3
 1 1 2   1
 1 1 2  -1
 2 1 2   3
 2 1 2   1
 2 1 2   1
 2 1 2  -2
 1 1 3   5
 1 1 3   4
 1 1 3   9
 1 1 3   6
 2 1 3   6
 2 1 3   0
 2 1 3   3
 2 1 3   7
 1 2 1   7
 1 2 1   9
 1 2 1   5
 1 2 1   5
 2 2 1   6
 2 2 1   5
 2 2 1   3
 2 2 1   4
 1 2 2   8
 1 2 2   7
 1 2 2   4
 1 2 2   8
 2 2 2   6
 2 2 2   4
 2 2 2   1
 2 2 2   3
 1 2 3  10
 1 2 3  11
 1 2 3   6
 1 2 3   4
 2 2 3   8
 2 2 3   7
 2 2 3  10
 2 2 3   0
 1 3 1   1
 1 3 1   2
 1 3 1   0
 1 3 1   4
 2 3 1  -1
 2 3 1   0
 2 3 1   0
 2 3 1   1
 1 3 2   3
 1 3 2   2
 1 3 2   1
 1 3 2   0
 2 3 2   2
 2 3 2   0
 2 3 2  -1
 2 3 2   1
 1 3 3  -1
 1 3 3   2
 1 3 3   6
 1 3 3   1
 2 3 3   0
 2 3 3  -2
 2 3 3   4
 2 3 3  -4
 1 4 1   6
 1 4 1   6
 1 4 1   7
 1 4 1   3
 2 4 1   4
 2 4 1   5
 2 4 1   5
 2 4 1   4
 1 4 2   7
 1 4 2   9
 1 4 2  11
 1 4 2   6
 2 4 2   9
 2 4 2   4
 2 4 2   6
 2 4 2   3
 1 4 3  10
 1 4 3   5
 1 4 3   4
 1 4 3   8
 2 4 3   4
 2 4 3   3
 2 4 3   7
 2 4 3   0 
;