getNumNnzGLPK function

Retrieve the Number of Constraint Coefficients

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

getNumNnzGLPK(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 getNumNnz which calls the GLPK function glp_get_num_nz.

Returns

Returns the number of non-zero elements in the constraint matrix of the specified problem object.

References

Based on the package glpk by Lopaka Lee.

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

Author(s)

Gabriel Gelius-Dietrich geliudie@uni-duesseldorf.de

Maintainer: Mayo Roettger mayo.roettger@hhu.de