chgMIPstartsCPLEX: Modify or Extend Multiple MIP Starts

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

Description

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

Usage

  chgMIPstartsCPLEX(env, lp, mcnt, mipstartindices, nzcnt,
                    beg, varindices, values, effortlevel)

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.
mcnt	Number of MIP starts to be changed.
mipstartindices	Array of length mcnt containing the numeric indices of the MIP starts to be changed.
nzcnt	Number of entries to be changed.
beg	Array of length mcnt used with varindices and values. Consult the IBM ILOG CPLEX documentation for more detailed information.
varindices	Aarray of length nzcnt containing the numeric indices of the columns corresponding to the variables which are assigned starting values. Consult the IBM ILOG CPLEX documentation for more detailed information.
values	Array of length nzcnt containing the values to use for the MIP starts. Consult the IBM ILOG CPLEX documentation for more detailed information.
effortlevel	Array of length mcnt. Consult the IBM ILOG CPLEX documentation for more detailed information.

Details

Interface to the C function chgMIPstarts which calls the CPLEX function CPXchgmipstarts.

Value

Zero if successful, otherwise nonzero.

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.

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