getMIPstartsCPLEX: Access a Range of MIP Starts of a CPLEX Problem Object

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

Description

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

Usage

  getMIPstartsCPLEX(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 MIP starts to be returned.
end	An integer specifying the end of the range of MIP starts to be returned.

Details

Interface to the C function getMIPstarts which calls the CPLEX function CPXgetmipstarts.

Value

If successful a list is returned:

beg	Array specifying where each of the requested MIP starts begins in the arrays varindices and values. Consult the IBM ILOG CPLEX documentation for more detailed information.
varindices	Array 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 containing the values of the MIP starts. Consult the IBM ILOG CPLEX documentation for more detailed information.
effortlevel	Array containing the effort level for each MIP start requested. Consult the IBM ILOG CPLEX documentation for more detailed information.

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.

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