* The Performance of Two Varieties of a Crop at Five Levels of Nitrogen Fertilization;

data complex;

 label n='Nitrogen' g='Genotype';

   

row  col     n    g      y

---------------------------

1      1     1    1    20.1

1      1     1    2    20.4

2      1     2    1    16.2

2      1     2    2    14.0

3      1     3    1    16.2

3      1     3    2    12.6

1      2     2    1    18.1

1      2     2    2    16.7

2      2     1    1    10.3

2      2     1    2     8.1

3      2     4    1    15.1

3      2     4    2    10.5

1      3     5    1    23.1

1      3     5    2    18.1

2      3     3    1    17.8

2      3     3    2    16.1

3      3     1    1     9.8

3      3     1    2     9.0

1      4     4    1    22.0

1      4     4    2    18.0

2      4     5    1    18.1

2      4     5    2    12.9

3      4     2    1    14.0

3      4     2    2    12.1

1      5     3    1    22.7

1      5     3    2    19.5

2      5     4    1    18.9

2      5     4    2    14.3

3      5     5    1    17.0

3      5     5    2    10.9