getCoefCPLEX: Access a Single Constraint Matrix Coefficient

Description Usage Arguments Details Value Author(s) References

View source: R/cplexAPI.R

Description

Low level interface function to the IBM ILOG CPLEX function CPXgetcoef. Consult the IBM ILOG CPLEX documentation for more detailed information.

Usage

1
  getCoefCPLEX(env, lp, i, j)

Arguments

env

An object of class "cplexPtr" as returned by openEnvCPLEX. This is basically a pointer to an IBM ILOG CPLEX environment.

lp

An object of class "cplexPtr" as returned by initProbCPLEX. This is basically a pointer to an IBM ILOG CPLEX problem object.

i

An integer specifying the numeric index of the row.

j

An integer specifying the numeric index of the column.

Details

Interface to the C function getCoef which calls the CPLEX function CPXgetcoef.

Value

Matrix coefficient value if successful, otherwise an instance of class "cplexError".

Author(s)

Gabriel Gelius-Dietrich <geliudie@uni-duesseldorf.de>

Maintainer: Claus Jonathan Fritzemeier <clausjonathan.fritzemeier@uni-duesseldorf.de>

References

The IBM ILOG CPLEX home page at https://www.ibm.com/developerworks/university/academicinitiative/.


cplexAPI documentation built on May 29, 2017, 9:30 a.m.

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