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 CPXchgbds. Consult the IBM ILOG CPLEX documentation for more detailed information.

Usage

1
  chgBndsCPLEX(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.

Details

Interface to the C function chgBnds which calls the CPLEX function CPXchgbds.

Value

Zero if successful, otherwise nonzero.

Author(s)

Gabriel Gelius-Dietrich <geliudie@uni-duesseldorf.de>

Maintainer: Claus Jonathan Fritzemeier <clausjonathan.fritzemeier@uni-duesseldorf.de>

References

The IBM ILOG CPLEX home page at https://www.ibm.com/developerworks/university/academicinitiative/.

See Also

getLowerBndsCPLEX, getUpperBndsCPLEX

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