dev.nm.root.univariate

Class GridSearchMinimizer

java.lang.Object

dev.nm.root.univariate.GridSearchMinimizer

All Implemented Interfaces:

UnivariateMinimizer, Minimizer<C2OptimProblem,UnivariateMinimizer.Solution>, Optimizer<C2OptimProblem,UnivariateMinimizer.Solution>

public class GridSearchMinimizer
extends Object
implements UnivariateMinimizer

This performs a grid search to find the minimum of a univariate function. This procedure may be appropriate when the bracketing interval is difficult to determine.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	GridSearchMinimizer.GridDefinition
class	GridSearchMinimizer.Solution This is the solution to the GridSearchMinimizer.

Constructor Summary

Constructors

Constructor and Description
GridSearchMinimizer(double gridSize) Constructs an instance with a given grid size for even grid.
GridSearchMinimizer(GridSearchMinimizer.GridDefinition gridDefinition) Constructs an instance with a user-defined grid.
GridSearchMinimizer(int nPoints) Constructs an instance with a given number of grid points for even grid.

Method Summary

Modifier and Type	Method and Description
GridSearchMinimizer.Solution	solve(C2OptimProblem problem) Solve an optimization problem, e.g., OptimProblem.
GridSearchMinimizer.Solution	solve(UnivariateRealFunction f) Minimizes a univariate function.

Methods inherited from class java.lang.Object

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

Constructor Detail

GridSearchMinimizer

public GridSearchMinimizer(int nPoints)

Constructs an instance with a given number of grid points for even grid.

Parameters:

nPoints - the number of grid points in the search range

GridSearchMinimizer

public GridSearchMinimizer(double gridSize)

Constructs an instance with a given grid size for even grid.

Parameters:

gridSize - the size of grid

GridSearchMinimizer

public GridSearchMinimizer(GridSearchMinimizer.GridDefinition gridDefinition)

Constructs an instance with a user-defined grid.

Parameters:

gridDefinition - the user-defined grid

Method Detail

solve

public GridSearchMinimizer.Solution solve(C2OptimProblem problem)

Description copied from interface: Optimizer

Solve an optimization problem, e.g., OptimProblem.

Specified by:

solve in interface Optimizer<C2OptimProblem,UnivariateMinimizer.Solution>

Parameters:

problem - an optimization problem

Returns:

a solution to the optimization problem

solve

public GridSearchMinimizer.Solution solve(UnivariateRealFunction f)

Minimizes a univariate function.

Parameters:

f - the objective function

Returns:

the minimizer