Enumerated Rule

Enumerated rules are used for categorical environmental variables, e.g. geology, land use type. All the possible conditions when certain soil type occurs are listed. The conditions are expressed as items (integer numbers). If the actual environmental condition matches any of the items in this list, the optimality value yielded by this rule will be 1; otherwise, the value will be 0.

To define a enumerated rule, the items that will yield optimality value 1 should be provided.