getUnbndRayGLPK {glpkAPI}

Determine Variable Causing Unboundedness

Description

Low level interface function to the GLPK function glp_get_unbnd_ray. Consult the GLPK documentation for more detailed information.

Usage

  getUnbndRayGLPK(lp)

Arguments

lp

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

Details

Interface to the C function getUnbndRay which calls the GLPK function glp_get_unbnd_ray.

Value

Returns the number k of a variable, which causes primal or dual unboundedness.

Author(s)

Gabriel Gelius-Dietrich <[e-mail]>

Maintainer: Mayo Roettger <[e-mail]>

References

Based on the package glpk by Lopaka Lee.

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