cplexAPI (version 1.4.0)

tightenBndsCPLEX: Change the Lower or Upper Bounds on a Set of Variables of a Problem

Description

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

Usage

tightenBndsCPLEX(env, lp, ncols, ind, lu, bd)

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.

lu

A character vector, specifying whether an entry in bd is a upper or a lower bound on variable ind[j].

bd

Values of the lower or upper bounds of the variables present in ind.

Value

Zero if successful, otherwise nonzero.

Details

Interface to the C function tightenBnds which calls the CPLEX function CPXtightenbds.

References

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

See Also

chgBndsCPLEX