ObjNRelTol

Type: double
Modifiable: Yes

This attribute is used to set the allowable degradation for objective $n$ when doing hierarchical multi-objective optimization. You set $n$ using the ObjNumber parameter.

Hierarchical multi-objective optimization will optimize for the different objectives in the model one at a time, in priority order. If it achieves objective value $z$ when it optimizes for this objective, then subsequent steps are allowed to degrade this value by at most ObjNRelTol*$\vert z\vert$.

The number of objectives in the model can be queried (or modified) using the NumObj attribute.

For examples of how to query or modify attributes, refer to our Attribute Examples.