Model queries

There are a number of things you can query about a model after constructing it. These can be useful to check that the model was defined correctly, or in post-processing after optimization.

• getmin returns the lower bounds of the variables; with an index argument, the lower bound of one variable.
• getmax returns the upper bounds of the variables; with an index argument, the upper bound of one variable.
• getinit returns the initial solution.
• getobjective returns the objective function.
• getineqconstraints returns the collection of inequality constraint functions.
• geteqconstraints returns the collection of equality constraint functions.
• getobjectiveconstraints returns the objective and constraint functions together, optionally including the semidefinite constraints with sd = true.
• getnvars returns the number of variables.
• getnconstraints returns the number of constraints.

The setmin!, setmax! and setinteger! functions update the bounds and integrality constraints after construction, which is useful for iterative procedures that resolve the same model with updated bounds.