behavior_cost

Specifies the cost for behaviors, used in the updating of v- and w-values. See The mechanisms.

The parameter behavior_cost can be set to certain values for certain particular behaviors. It can also be specified as a single value, in which case the same cost is used for all behaviors. Wildcards (*) may be used to set several values at once.

Syntax

behavior_cost = e1: v1, e2: v2, ..., en: vn, default: d
behavior_cost = v1
behavior_cost = *:v1  # Same as above

where v1,v2,...,vn and d are scalar expressions.

Description

behavior_cost = b1: v1, b2: v2, ..., bn->vn: vn, default: d sets the behavior cost for

• b1 to v1,

• b2 to v2, …,

• bn to vn,

and the behavior cost for all other behaviors to d.

• The specification is independent of the list order:

  behavior_cost = b1:v1, b2:v2, default:d

  is the same as

  behavior_cost = b2:v2, default:d, b1:v1.

• default need not be specified if all behaviors are present in the list. For example,

  behaviors = b1, b2
  behavior_cost = b1:v1, b2:v2
  

---

behavior_cost = v1 sets the behavior cost for all behaviors to v1.

• behavior_cost = v1 is the same as behavior_cost = default: v1.

Dependencies

• The property behaviors must be specified before behavior_cost.

• Each behavior used in the specification of behavior_cost must be present in the parameter behavior_cost.

Examples

@variables x = 1
behavior_cost = behavior1: x, behavior2: x+1, behavior3:x+2

sets the behavior cost for behavior1 to 1 and for behavior2 to 2, and for the remaining behaviors to 3.

behavior_cost = behavior1: 0.5, default:0

sets the behavior cost for behavior1 to 0.5, and for the remaining behaviors to 3.

behavior_cost = 0.1

sets the behavior cost for all behaviors to 0.1.