QUESO::InverseGammaVectorRealizer< V, M > Class Template Reference

A class for handling sampling from an Inverse Gamma probability density distribution. More...

#include <InverseGammaVectorRealizer.h>

Inheritance diagram for QUESO::InverseGammaVectorRealizer< V, M >:

Public Member Functions
Constructor/Destructor methods
	InverseGammaVectorRealizer (const char *prefix, const VectorSet< V, M > &unifiedImageSet, const V &alpha, const V &beta)
	Constructor. More...
	~InverseGammaVectorRealizer ()
	Destructor. More...
Realization-related methods
void	realization (V &nextValues) const
	Draws a realization. More...
Public Member Functions inherited from QUESO::BaseVectorRealizer< V, M >
	BaseVectorRealizer (const char *prefix, const VectorSet< V, M > &unifiedImageSet, unsigned int subPeriod)
	Default constructor. More...
virtual	~BaseVectorRealizer ()
	Virtual destructor. More...
const VectorSet< V, M > &	unifiedImageSet () const
	Image set where the realizations lie. Access to protected attribute m_unifiedImageSet. More...
unsigned int	subPeriod () const
	Sub-period of the realization. Access to protected attribute m_subPeriod. More...

Private Attributes
V	m_alpha
V	m_beta

Additional Inherited Members
Protected Attributes inherited from QUESO::BaseVectorRealizer< V, M >
const BaseEnvironment &	m_env
std::string	m_prefix
const VectorSet< V, M > &	m_unifiedImageSet
unsigned int	m_subPeriod

Detailed Description

template<class V = GslVector, class M = GslMatrix>
class QUESO::InverseGammaVectorRealizer< V, M >

A class for handling sampling from an Inverse Gamma probability density distribution.

This class handles sampling from an Inverse Gamma probability density distribution, of parameters alpha and beta.

Definition at line 49 of file InverseGammaVectorRealizer.h.

Constructor & Destructor Documentation

template<class V , class M >

QUESO::InverseGammaVectorRealizer< V, M >::InverseGammaVectorRealizer	(	const char *	prefix,
		const VectorSet< V, M > &	unifiedImageSet,
		const V &	alpha,
		const V &	beta
	)

Constructor.

Constructs a new object, given a prefix, the image set of the vector realizer, and the Beta distribution parameters a and b, which are assigned to private attributes m_alpha and m_beta.

Definition at line 34 of file InverseGammaVectorRealizer.C.

References QUESO::BaseEnvironment::displayVerbosity(), QUESO::BaseVectorRealizer< V, M >::m_env, QUESO::BaseVectorRealizer< V, M >::m_prefix, and QUESO::BaseEnvironment::subDisplayFile().

  :
  BaseVectorRealizer<V,M>(((std::string)(prefix)+"gen").c_str(),unifiedImageSet,std::numeric_limits<unsigned int>::max()),
  m_alpha(alpha),
  m_beta (beta)
{
  if ((m_env.subDisplayFile()) && (m_env.displayVerbosity() >= 5)) {
    *m_env.subDisplayFile() << "Entering InverseGammaVectorRealizer<V,M>::constructor()"
                            << ": prefix = " << m_prefix
                            << std::endl;
  }

  if ((m_env.subDisplayFile()) && (m_env.displayVerbosity() >= 5)) {
    *m_env.subDisplayFile() << "Leaving InverseGammaVectorRealizer<V,M>::constructor()"
                            << ": prefix = " << m_prefix
                            << std::endl;
  }
}

template<class V , class M >

QUESO::InverseGammaVectorRealizer< V, M >::~InverseGammaVectorRealizer

(

)

Destructor.

Definition at line 58 of file InverseGammaVectorRealizer.C.

{
}

Member Function Documentation

template<class V , class M >

void QUESO::InverseGammaVectorRealizer< V, M >::realization ( V &  nextValues ) const

virtual

Draws a realization.

This function draws a realization of an Inverse Gamma distribution and saves it in nextValues. It internally checks whether the image set, where the realization should be drawn, belongs to the interval (0, infinity) - which is the range where Gamma distribution is defined over.

Implements QUESO::BaseVectorRealizer< V, M >.

Definition at line 64 of file InverseGammaVectorRealizer.C.

{
  nextValues.cwSetInverseGamma(m_alpha,m_beta);
  return;
}

Member Data Documentation

template<class V = GslVector, class M = GslMatrix>

V QUESO::InverseGammaVectorRealizer< V, M >::m_alpha

private

Definition at line 80 of file InverseGammaVectorRealizer.h.

template<class V = GslVector, class M = GslMatrix>

V QUESO::InverseGammaVectorRealizer< V, M >::m_beta

private

Definition at line 81 of file InverseGammaVectorRealizer.h.

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

• src/stats/inc/InverseGammaVectorRealizer.h
• src/stats/src/InverseGammaVectorRealizer.C