Very, very simple test function which is the composite of three other functions. More...

Public Member Functions
	SGDTestFunction ()
	Nothing to do for the constructor. More...

double	Evaluate (const arma::mat &coordinates, const size_t i) const
	Evaluate a function. More...

arma::mat	GetInitialPoint () const
	Get the starting point. More...

void	Gradient (const arma::mat &coordinates, const size_t i, arma::mat &gradient) const
	Evaluate the gradient of a function. More...

size_t	NumFunctions () const
	Return 3 (the number of functions). More...

Detailed Description

Very, very simple test function which is the composite of three other functions.

The gradient is not very steep far away from the optimum, so a larger step size may be required to optimize it in a reasonable number of iterations.

Definition at line 25 of file test_function.hpp.

Constructor & Destructor Documentation

mlpack::optimization::test::SGDTestFunction::SGDTestFunction ( )

inline

Nothing to do for the constructor.

Definition at line 29 of file test_function.hpp.

double mlpack::optimization::test::SGDTestFunction::Evaluate	(	const arma::mat &	coordinates,
		const size_t	i
	)		const

Evaluate a function.

arma::mat mlpack::optimization::test::SGDTestFunction::GetInitialPoint ( ) const

inline

Get the starting point.

Definition at line 35 of file test_function.hpp.

void mlpack::optimization::test::SGDTestFunction::Gradient	(	const arma::mat &	coordinates,
		const size_t	i,
		arma::mat &	gradient
	)		const

Evaluate the gradient of a function.

size_t mlpack::optimization::test::SGDTestFunction::NumFunctions ( ) const

inline

Return 3 (the number of functions).

Definition at line 32 of file test_function.hpp.

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