Pi
| Type: | double |
|---|---|
| Modifiable: | No |
The constraint dual value in the current solution (also known as the shadow price).
Given a linear programming problem
and a corresponding dual problem
the Pi attribute returns 
.
Of course, not all models fit this canonical form. In general, dual values have the following properties:
- Dual values for
constraints are 
.
- Dual values for
constraints are 
.
- Dual values for
constraints are unconstrained.
for a constraint and
for a constraint.
Only available for continuous models.
For examples of how to query or modify attributes, refer to our Attribute Examples.
