Number of objectives in the model. If you modify this attribute, it will
change the number of objectives in the model. Decreasing it will discard
existing objectives. Increasing it will create new objectives (initialized
to 0). Setting it to 0 will create a model with no objective (i.e., a
feasibility model). If you want to switch from a multi-objective model to a
single-objective model you also need to set
NumObj to 0 and call
model update before installing a new single objective.
You can use the ObjNumber
parameter, in conjunction with multi-objective attributes
etc.), to query or modify attributes for different objectives. The
ObjNumber should always be less than
Please refer to the discussion of Multiple Objectives for more information on the use of alternative objectives.
For examples of how to query or modify attributes, refer to our Attribute Examples.