getMatColGLPK: Retrieves Column j of the Constraint Matrix.
In glpkAPI: R Interface to C API of GLPK
getMatColGLPK R Documentation
Retrieves Column j of the Constraint Matrix.
Description
Low level interface function to the GLPK function glp_get_mat_col.
Consult the GLPK documentation for more detailed information.
Usage
getMatColGLPK(lp, j)
Arguments
lp
An object of class "glpkPtr" as returned by
initProbGLPK. This is basically a pointer to a GLPK problem
object.
j
Column number j.
Details
Interface to the C function getMatCol which calls the GLPK
functions glp_get_num_rows and glp_get_mat_col.
Value
Returns NULL or a list containing the non zero elements of column j:
nnz
number of non zero elements in column j
index
row indices of the non zero elements in column j
value
numerical values of the non zero elements in column j
Author(s)
Gabriel Gelius-Dietrich <geliudie@uni-duesseldorf.de>
Maintainer: Mayo Roettger <mayo.roettger@hhu.de>
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.
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| getMatColGLPK | R Documentation |
Retrieves Column j of the Constraint Matrix.
Description
Low level interface function to the GLPK function glp_get_mat_col.
Consult the GLPK documentation for more detailed information.
Usage
getMatColGLPK(lp, j)
Arguments
lp |
An object of class |
j |
Column number j. |
Details
Interface to the C function getMatCol which calls the GLPK
functions glp_get_num_rows and glp_get_mat_col.
Value
Returns NULL or a list containing the non zero elements of column j:
nnz |
number of non zero elements in column j |
index |
row indices of the non zero elements in column j |
value |
numerical values of the non zero elements in column j |
Author(s)
Gabriel Gelius-Dietrich <geliudie@uni-duesseldorf.de>
Maintainer: Mayo Roettger <mayo.roettger@hhu.de>
References
Based on the package glpk by Lopaka Lee.
The GNU GLPK home page at http://www.gnu.org/software/glpk/glpk.html.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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