num_prob_collect::opt::shekel_function Class Reference

Class of Shekel function in 4 dimensions. More...

#include <num_prob_collect/opt/shekel_function.h>

Collaboration diagram for num_prob_collect::opt::shekel_function:

Public Types
using	value_type = double
	Type of function values.
using	variable_type = Eigen::Vector4d
	Type of variables.

Public Member Functions
	shekel_function (int m)
	Constructor.
void	evaluate_on (const Eigen::Vector4d &x)
	Evaluate function value on variable.
auto	value () const -> const double &
	Get function value.

Private Attributes
Eigen::Matrix< double, 10, 1 >	beta_ {}
	Offset in the function.
Eigen::Matrix< double, 4, 10 >	c_ {}
	Centers in the function.
int	m_
	Number of terms.
double	value_ {}
	Function value.

Detailed Description

Class of Shekel function in 4 dimensions.

This function has m local minimum and the global one at (4, 4, 4, 4). Search region is [0, 10] for each dimension.

Reference: https://www.sfu.ca/~ssurjano/shekel.html

Examples

opt/adaptive_diagonal_curves.cpp, and opt/dividing_rectangles.cpp.

Definition at line 34 of file shekel_function.h.

Member Typedef Documentation

value_type

using num_prob_collect::opt::shekel_function::value_type = double

Type of function values.

Definition at line 40 of file shekel_function.h.

variable_type

using num_prob_collect::opt::shekel_function::variable_type = Eigen::Vector4d

Type of variables.

Definition at line 37 of file shekel_function.h.

Constructor & Destructor Documentation

shekel_function()

num_prob_collect::opt::shekel_function::shekel_function ( int m )

inlineexplicit

Constructor.

Parameters

[in]

m

Number of terms.

Definition at line 47 of file shekel_function.h.

Member Function Documentation

evaluate_on()

void num_prob_collect::opt::shekel_function::evaluate_on ( const Eigen::Vector4d & x )

inline

Evaluate function value on variable.

Parameters

[in]

x

Variable.

Definition at line 65 of file shekel_function.h.

value()

auto num_prob_collect::opt::shekel_function::value ( ) const -> const double&

inlinenodiscard

Get function value.

Returns

Function value.

Definition at line 77 of file shekel_function.h.

Member Data Documentation

beta_

Eigen::Matrix<double, 10, 1> num_prob_collect::opt::shekel_function::beta_ {}

private

Offset in the function.

Definition at line 84 of file shekel_function.h.

c_

Eigen::Matrix<double, 4, 10> num_prob_collect::opt::shekel_function::c_ {}

private

Centers in the function.

Definition at line 87 of file shekel_function.h.

m_

int num_prob_collect::opt::shekel_function::m_

private

Number of terms.

Definition at line 81 of file shekel_function.h.

value_

double num_prob_collect::opt::shekel_function::value_ {}

private

Function value.

Definition at line 90 of file shekel_function.h.

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The documentation for this class was generated from the following file:

• problems/include/num_prob_collect/opt/shekel_function.h