MATRIX          60     4
) Depths of chocolate chip cookies.  Variables are
) cookie sheet, dough type (from scratch with butter,
) from scratch with margarine, pre-made dough in tube,
) pre-made dry mix), dough pre-bake temperature (room
) temperature, refrigerated, frozen), and cookie depth
) in cm.  Data from London (2003).
)"%lf %lf %lf %lf"
            1            1            1          1.7
            1            4            1          1.3
            1            4            2          1.5
            1            4            3          1.7
            1            2            2          1.2
            1            2            3          1.3
            1            3            3         1.65
            1            3            1          1.4
            1            2            1          1.5
            1            1            2          1.9
            1            1            3            2
            1            3            2          1.7
            2            1            2            2
            2            4            2          2.1
            2            4            1         1.85
            2            2            3         1.25
            2            1            3          1.8
            2            3            1          1.5
            2            4            3            2
            2            3            3          1.8
            2            3            2          1.4
            2            2            1            1
            2            2            2          1.1
            2            1            1          1.7
            3            4            1          1.6
            3            2            3          1.4
            3            1            1          1.6
            3            4            2          1.9
            3            1            3          1.6
            3            1            2          1.7
            3            2            2            1
            3            4            3          2.1
            3            3            1          1.6
            3            2            1          1.2
            3            3            2          1.4
            3            3            3          1.4
            4            3            3          1.6
            4            2            2            1
            4            4            3          1.6
            4            1            3          1.8
            4            1            2          1.7
            4            3            2          1.6
            4            4            2          1.6
            4            4            1          1.4
            4            2            3          0.9
            4            1            1          1.3
            4            3            1          1.2
            4            2            1          0.9
            5            2            2         1.35
            5            3            1          1.4
            5            4            3          2.2
            5            4            2          2.1
            5            4            1          1.6
            5            3            2          1.3
            5            1            1          1.5
            5            1            2          1.6
            5            2            1          1.2
            5            3            3          1.5
            5            2            3            1
            5            1            3          1.5