roboptim::BadGradient Class Reference

Exception thrown when a gradient check fail. More...

#include <roboptim/core/finite-difference-gradient.hh>

Inheritance diagram for roboptim::BadGradient:

Public Types
typedef DerivableFunction::vector_t	vector_t
	Import vector. More...
typedef DerivableFunction::gradient_t	gradient_t
	Import gradient. More...
typedef DerivableFunction::value_type	value_type
	Import value_type. More...
typedef DerivableFunction::size_type	size_type
	Import size_type. More...

Public Member Functions
	BadGradient (const vector_t &x, const gradient_t &analyticalGradient, const gradient_t &finiteDifferenceGradient, const value_type &threshold)
	Default constructor. More...
virtual	~BadGradient () throw ()
virtual std::ostream &	print (std::ostream &o) const throw ()
	Display the exception on the specified output stream. More...

Public Attributes
vector_t	x_
	Gradient has been computed for this point. More...
gradient_t	analyticalGradient_
	Analytical gradient. More...
gradient_t	finiteDifferenceGradient_
	Gradient computed through finite differences. More...
value_type	maxDelta_
	Maximum error. More...
value_type	maxDeltaComponent_
	Component containing the maximum error. More...
value_type	threshold_
	Allowed threshold. More...

Detailed Description

Exception thrown when a gradient check fail.

Member Typedef Documentation

typedef DerivableFunction::gradient_t roboptim::BadGradient::gradient_t

Import gradient.

typedef DerivableFunction::size_type roboptim::BadGradient::size_type

Import size_type.

typedef DerivableFunction::value_type roboptim::BadGradient::value_type

Import value_type.

typedef DerivableFunction::vector_t roboptim::BadGradient::vector_t

Import vector.

Constructor & Destructor Documentation

roboptim::BadGradient::BadGradient	(	const vector_t &	x,
		const gradient_t &	analyticalGradient,
		const gradient_t &	finiteDifferenceGradient,
		const value_type &	threshold
	)

Default constructor.

References maxDelta_, and maxDeltaComponent_.

roboptim::BadGradient::~BadGradient ( ) throw ()

virtual

Member Function Documentation

std::ostream & roboptim::BadGradient::print ( std::ostream &  o ) const throw ()

virtual

Display the exception on the specified output stream.

Parameters

o	output stream used for display

Returns

output stream

References roboptim::decindent(), roboptim::iendl(), and roboptim::incindent().

Referenced by roboptim::operator<<().

Member Data Documentation

gradient_t roboptim::BadGradient::analyticalGradient_

Analytical gradient.

gradient_t roboptim::BadGradient::finiteDifferenceGradient_

Gradient computed through finite differences.

value_type roboptim::BadGradient::maxDelta_

Maximum error.

Referenced by BadGradient().

value_type roboptim::BadGradient::maxDeltaComponent_

Component containing the maximum error.

Referenced by BadGradient().

value_type roboptim::BadGradient::threshold_

Allowed threshold.

vector_t roboptim::BadGradient::x_

Gradient has been computed for this point.