| Comment: sample data file.
| (Of course, a real data file would have many more cases that this!)

| Note that values of the implicit attributes 'bodymassindex' and 'tracking' do not appear
| in the data -- they are calculated from the values of 'weight' and 'height' and
| 'first' and 'last' respectively.

00121, 1999-01-31, 2001-02-28, 23, 153, 95, male, overweight.		| first case
02002, 1977-12-03, 2001-02-26, 47, 183, 70, male, normal.		| second case
00937, 2001-02-26, 2001-02-26, ?, 157, 54, female, underweight.		| notice missing age
01363, 1993-07-12, 2001-01-31, 33, 165, 64, ?, normal.			| sex not recorded
