getPreStatCPLEX: Access Presolve Status Information for Columns and Rows

In cplexAPI: R Interface to C API of IBM ILOG CPLEX

Description

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

Usage

  getPreStatCPLEX(env, lp)

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.

Details

Interface to the C function getPreStat which calls the CPLEX function CPXgetprestat.

Value

If successful a list is returned:

prestat	status of the presolved problem
pcstat	presolve status values of the columns
prstat	presolve status values of the rows
ocstat	presolve status values of the columns of the presolved problem
orstat	presolve status values of the rows of the presolved problem

otherwise an instance of class "cplexError".

Author(s)

Gabriel Gelius-Dietrich <[e-mail]>

Maintainer: Mayo Roettger <[e-mail]>

References

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

See Also

cplexConstants

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