#include <types.hpp>

Inheritance diagram for sspace::qloguniform:

Public Member Functions
	qloguniform (std::string n, double lower, double upper, double q)

double	sample ()

Public Member Functions inherited from sspace::loguniform
	loguniform (std::string n, double lower, double upper)

	loguniform (std::string n, double lower, double upper, pt t)

Public Member Functions inherited from sspace::uniform
	uniform (std::string n, double lower, double upper)

	uniform (std::string n, double lower, double upper, pt type)

Public Member Functions inherited from sspace::param_t
	param_t (std::string n, pt t)

virtual	~param_t ()

virtual pt	get_type ()

virtual std::string	get_name ()

Public Attributes
double	m_q

Public Attributes inherited from sspace::uniform
double	m_lower

double	m_upper

Additional Inherited Members
Protected Attributes inherited from sspace::uniform
std::random_device	rd

std::mt19937	generator

std::uniform_real_distribution< double >	dist

Detailed Description

qloguniform parameters are like loguniform parameters except that they are clipped above and below, and vary in fixed increments.

This is suitable for discrete-valued parameters with respect to which the objective function is smooth, and gets smoother with the size of the value.

Constructor & Destructor Documentation

sspace::qloguniform::qloguniform	(	std::string	n,
		double	lower,
		double	upper,
		double	q
	)

The constructor

Parameters

n	the name of this parameter
lower	the lower bound; must be strictly positive
upper	the upper bound; must be strictly positive
q	the 'quantisation'; as a double

Exceptions

invalid_argument on negative or zero-valued bounds

double sspace::qloguniform::sample ( )

virtual

Overloads the sample method from loguniform to quantise it;

\[ v = \text{clip}\bigg( \text{round}\big(\text{loguniform}(\text{low},\text{high}) \big)\bigg) \]

Returns: a double-precision floating point value sampled from a quantised loguniform distribution.

Reimplemented from sspace::loguniform.

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