getQConstrCPLEX: Access a Specified Quadratic Constraint on the Variables of a...

In cplexAPI: R Interface to C API of IBM ILOG CPLEX

Description

Low level interface function to the IBM ILOG CPLEX function CPXgetqconstr. Consult the IBM ILOG CPLEX documentation for more detailed information.

Usage

  getQConstrCPLEX(env, lp, which)

Arguments

env	An object of class "cplexPtr" as returned by openEnvCPLEX. This is basically a pointer to an IBM ILOG CPLEX environment.
lp	An object of class "cplexPtr" as returned by initProbCPLEX. This is basically a pointer to an IBM ILOG CPLEX problem object.
which	An integer specifying which quadratic constraint to return.

Details

Interface to the C function getQConstr which calls the CPLEX function CPXgetqconstr.

Value

If successful a list is returned:

rhs	Righthand-side value of the quadratic constraint. Consult the IBM ILOG CPLEX documentation for more detailed information.
sense	Character specifying the sense of the constraint. Consult the IBM ILOG CPLEX documentation for more detailed information.
linind	Variable indices of the entries of linval. Consult the IBM ILOG CPLEX documentation for more detailed information.
linval	Linear coefficients of the specified constraint. Consult the IBM ILOG CPLEX documentation for more detailed information.
quadrow	Variable indices of the entries of quadval. Consult the IBM ILOG CPLEX documentation for more detailed information.
quadcol	Variable indices of the entries of quadval. Consult the IBM ILOG CPLEX documentation for more detailed information.
quadval	Quadratic coefficients of the specified constraint. Consult the IBM ILOG CPLEX documentation for more detailed information.

otherwise an instance of class "cplexError".

Author(s)

Gabriel Gelius-Dietrich <[e-mail]>

Maintainer: Mayo Roettger <[e-mail]>

References

The IBM ILOG CPLEX home page at https://www.ibm.com/support/knowledgecenter/SSSA5P.

cplexAPI documentation built on Oct. 23, 2020, 5:45 p.m.