includes and does not include allow us to build rule conditions that identify cases that either have or do not have some specified attribute with values in a particular range.
For example, suppose that we defined a Calculated Value Attribute to have name VeryHigh and formula
{pollen, animal} in range [50, 5000]
where pollen is the group attribute {birch, timothy, mugwort} and animal is the group attribute {cat, dog}. A case such as:
age 6 sex F birch 40.0 timothy 63.5 mugwort 12.1 cat 34.6 dog 25.3
Would satisfy the condition: VeryHigh includes timothy
Whereas a case such as:
age 6 sex F birch 60.0 timothy 33.5 mugwort 12.1 cat 55.6 dog 25.3
Would satisfy: VeryHigh does not include timothy