Package net.sf.tweety.math.opt.solver

Class OpenOptSolver

java.lang.Object

net.sf.tweety.math.opt.Solver

net.sf.tweety.math.opt.solver.OpenOptSolver

Direct Known Subclasses:

OpenOptWebSolver

public class OpenOptSolver
extends Solver

This class implements a wrapper for the OpenOpt optimization library.

Author:

Matthias Thimm

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	ignoreNotFeasibleError

Constructor Summary

Constructors

Constructor	Description
OpenOptSolver()	Creates a new solver.
OpenOptSolver(Map<Variable,Term> startingPoint)	Creates a new solver for the given problem.

Method Summary

Modifier and Type	Method	Description
double	getContol()
double	getFtol()
double	getGtol()
double	getMaxFunEvals()
double	getMaxIter()
String	getOpenOptCode(OptimizationProblem problem)	Builds the OpenOpt code for the given problem which can be interpreted by a python.
String	getSolver()
double	getXtol()
boolean	isIgnoreNotFeasibleError()
static boolean	isInstalled()
protected Map<Variable,Term>	parseOutput(String output)	This method parses the output data of an OpenOpt run
void	setContol(double contol)
void	setFtol(double ftol)
void	setGtol(double gtol)
void	setIgnoreNotFeasibleError(boolean ignoreNotFeasibleError)
void	setMaxFunEvals(double maxFunEvals)
void	setMaxIter(double maxIter)
void	setSolver(String solver)
void	setXtol(double xtol)
Map<Variable,Term>	solve(ConstraintSatisfactionProblem problem)	Computes a solution to the given constraint satisfaction or optimization problem, i.e.

Methods inherited from class net.sf.tweety.math.opt.Solver

getDefaultGeneralSolver, getDefaultIntegerLinearSolver, getDefaultLinearSolver, hasDefaultGeneralSolver, hasDefaultIntegerLinearSolver, hasDefaultLinearSolver, setDefaultGeneralSolver, setDefaultIntegerLinearSolver, setDefaultLinearSolver

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

ignoreNotFeasibleError

protected boolean ignoreNotFeasibleError

Constructor Detail

OpenOptSolver

public OpenOptSolver()

Creates a new solver.

OpenOptSolver

public OpenOptSolver(Map<Variable,Term> startingPoint)

Creates a new solver for the given problem.

Parameters:

startingPoint - a starting point.

Method Detail

solve

public Map<Variable,Term> solve(ConstraintSatisfactionProblem problem)
                               throws GeneralMathException

Description copied from class: Solver

Computes a solution to the given constraint satisfaction or optimization problem, i.e. a mapping from variables of the problem to terms.

Specified by:

solve in class Solver

Parameters:

problem - the actual problem

Returns:

a mapping from variables of the problem to terms.

Throws:

GeneralMathException - if something went wrong.

getOpenOptCode

public String getOpenOptCode(OptimizationProblem problem)

Builds the OpenOpt code for the given problem which can be interpreted by a python.

Parameters:

problem - the optimisation problem

Returns:

the python code for the given problem

parseOutput

protected Map<Variable,Term> parseOutput(String output)

This method parses the output data of an OpenOpt run

Parameters:

output - a string.

Returns:

a map from variable to terms

isInstalled

public static boolean isInstalled()
                           throws UnsupportedOperationException

Throws:

UnsupportedOperationException

getContol

public double getContol()

setContol

public void setContol(double contol)

getFtol

public double getFtol()

setFtol

public void setFtol(double ftol)

getGtol

public double getGtol()

setGtol

public void setGtol(double gtol)

getXtol

public double getXtol()

setXtol

public void setXtol(double xtol)

getMaxIter

public double getMaxIter()

setMaxIter

public void setMaxIter(double maxIter)

getMaxFunEvals

public double getMaxFunEvals()

setMaxFunEvals

public void setMaxFunEvals(double maxFunEvals)

getSolver

public String getSolver()

setSolver

public void setSolver(String solver)

isIgnoreNotFeasibleError

public boolean isIgnoreNotFeasibleError()

setIgnoreNotFeasibleError

public void setIgnoreNotFeasibleError(boolean ignoreNotFeasibleError)