preslvWriteCPLEX: Write a Presolved Version of the Problem to File
In cplexAPI: R Interface to C API of IBM ILOG CPLEX

Description Usage Arguments Details Value Author(s) References See Also

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

1	preslvWriteCPLEX(env, lp, fname)

`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.
`fname`	Single character value giving the file name to write to.

Interface to the C function preslvWrite which calls the CPLEX function CPXpreslvwrite.

If successful a dingle numeric value containing the objective value difference between the original problem and the presolved problem, otherwise an instance of class "cplexError".

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

Maintainer: Mayo Roettger <mayo.roettger@hhu.de>

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

readCopyProbCPLEX

cplexAPI documentation built on Oct. 23, 2020, 5:45 p.m.