checkDupGLPK: Check for Duplicate Elements in Sparse Matrix

In glpkAPI: R Interface to C API of GLPK

Check for Duplicate Elements in Sparse Matrix

Description

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

Usage

  checkDupGLPK(m, n, ne, ia, ja)

Arguments

m	Number of rows in the matrix.
n	Number of columns in the matrix.
ne	Number of non-zero elements in the matrix.
ia	Row indices of the non-zero elements.
ja	Column indices of the non-zero elements.

Details

Interface to the C function checkDup which calls the GLPK function glp_check_dup.

Value

Returns one of the following values:

0	No duplikate elements.
-k	Indices ia[k] or ja[k] are out of range.
+k	Element (ia[k], ja[k]) is duplicate.

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

glpkAPI documentation built on Nov. 10, 2022, 5:51 p.m.