Learn R Programming

glpkAPI (version 1.3.4)

getObjCoefsGLPK: Retrieve Objective Coefficients at Specified Columns and/or Constant Term

Description

This is an advanced version of getObjCoefGLPK. Here, j can be an integer vector.

Usage

getObjCoefsGLPK(lp, j)

Value

The objective coefficient at all specified columns (j) (the corresponding structural variable) is returned. If

j is 0, the constant term “shift” of the objective function is returned.

Arguments

lp

An object of class "glpkPtr" as returned by initProbGLPK. This is basically a pointer to a GLPK problem object.

j

Vector of column numbers.

Author

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

Maintainer: Mayo Roettger <mayo.roettger@hhu.de>

Details

Interface to the C function getObjCoef which calls the GLPK function glp_get_obj_coef.

References

Based on the package glpk by Lopaka Lee.

The GNU GLPK home page at http://www.gnu.org/software/glpk/glpk.html.