Learn R Programming

cplexAPI (version 1.4.0)

getDjCPLEX: Accesses Reduced Costs for a Range of Variables of a Linear or Quadratic Program

Description

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

Usage

getDjCPLEX(env, lp, begin, end)

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.

begin

An integer specifying the beginning of the range of reduced-cost values to be returned.

end

An integer specifying the end of the range of reduced-costs values to be returned.

Value

Reduced costs if successful, otherwise an instance of class "'>cplexError".

Details

Interface to the C function getDj which calls the CPLEX function CPXgetdj.

References

The IBM ILOG CPLEX home page at https://www.ibm.com/support/knowledgecenter/SSSA5P.