setColsBndsObjCoefsGLPK {glpkAPI}

Set/Change Column Bounds and Objective Coefficients and/or Constant Term

Description

This is an combined version of setColsBndsGLPK and setObjCoefsGLPK. Here, j can be an integer vector, lb, ub and obj_coef can be numeric vectors.

Usage

  setColsBndsObjCoefsGLPK(lp, j, lb, ub, obj_coef, type = NULL)

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.

lb

Vector of lower bounds.

ub

Vector of upper bounds.

obj_coef

Vector of objective coefficients.

type

Vector of variable types (default: NULL). For possible values, see glpkConstants, section ‘LP/MIP problem object’.

Details

Interface to the C function setColsBndsObjCoefs which calls the GLPK functions glp_set_col_bnds and glp_set_obj_coef.

If type is set to NULL, the type of the variables will be estimated. If lb[i] equals ub[i], variable j[i] is fixed, otherwise double bounded.

Value

NULL

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.

See Also

glpkConstants