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cplexAPI (version 1.4.0)

chgObjCPLEX: Change Linear Objective Coefficients

Description

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

Usage

chgObjCPLEX(env, lp, ncols, ind, val)

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.

ncols

Number of bounds to be changed.

ind

Indices of bounds to be changed.

val

A vector containing the new values of the objective coefficients of the variables specified in ind.

Value

Zero if successful, otherwise nonzero.

Details

Interface to the C function chgObj which calls the CPLEX function CPXchgobj.

References

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