constraint-class function

Class 'constraint': a single constraint

constraint is an S4 class for representing a single constraint. class

Slots

• constraint: the numeric index of the constraint.

• constraint_id: the character ID of the constraint.

• nc: the number of MIP-format constraints translated from this constraint.

• mat,dir,rhs: these represent MIP-format constraints. A single MIP-format constraint is associated with a row in mat, a value in rhs, and a value in dir.

    * the **i**-th row of `mat` represents LHS coefficients to use on decision variables in the **i**-th MIP-format constraint.
    * the **i**-th value of `rhs` represents RHS values to use in the **i**-th MIP-format constraint.
    * the **i**-th value of `dir` represents the imposed constraint between LHS and RHS.
  

• suspend: TRUE if the constraint is not to be imposed.