Access a Range of MIP Starts of a CPLEX Problem Object

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Description

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

Usage

1
  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 <geliudie@uni-duesseldorf.de>

Maintainer: Claus Jonathan Fritzemeier <clausjonathan.fritzemeier@uni-duesseldorf.de>

References

The IBM ILOG CPLEX home page at https://www.ibm.com/developerworks/university/academicinitiative/.

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