cugar::Gaussian_distribution_2d Struct Reference

Detailed description

2d Gaussian distribution with fully prescribed covariance matrix

#include <distributions.h>

Public Types
enum	MatrixType { COVARIANCE_MATRIX, PRECISION_MATRIX }

Public Methods
CUGAR_HOST_DEVICE	Gaussian_distribution_2d ()
CUGAR_HOST_DEVICE	Gaussian_distribution_2d (const Vector2f mu, const Matrix2x2f matrix, const MatrixType matrix_type=COVARIANCE_MATRIX)
CUGAR_HOST_DEVICE	Gaussian_distribution_2d (const Vector2f mu, const Matrix2x2f sigma, const Matrix2x2f prec)
CUGAR_HOST_DEVICE Vector2f	map (const Vector2f uv) const
CUGAR_HOST_DEVICE float	density (const Vector2f x) const
CUGAR_HOST_DEVICE Vector2f	mean () const
CUGAR_HOST_DEVICE const Matrix2x2f &	precision () const
CUGAR_HOST_DEVICE const Matrix2x2f	covariance () const

Constructor & Destructor Documentation

Gaussian_distribution_2d() [1/3]

CUGAR_HOST_DEVICE cugar::Gaussian_distribution_2d::Gaussian_distribution_2d ( )

inline

constructor

Parameters

mu	mean
matrix	covariance | precision matrix
matrix_type	specify which matrix is passed

Gaussian_distribution_2d() [2/3]

CUGAR_HOST_DEVICE cugar::Gaussian_distribution_2d::Gaussian_distribution_2d ( const Vector2f  mu, const Matrix2x2f  matrix, const MatrixType  matrix_type = COVARIANCE_MATRIX  )

inline

constructor

Parameters

mu	mean
matrix	covariance | precision matrix
matrix_type	specify which matrix is passed

Gaussian_distribution_2d() [3/3]

CUGAR_HOST_DEVICE cugar::Gaussian_distribution_2d::Gaussian_distribution_2d ( const Vector2f  mu, const Matrix2x2f  sigma, const Matrix2x2f  prec  )

inline

constructor

Parameters

sigma	covariance matrix
prec	precision matrix

Member Function Documentation

covariance()

CUGAR_HOST_DEVICE const Matrix2x2f cugar::Gaussian_distribution_2d::covariance ( ) const

inline

return the covariance matrix

density()

CUGAR_HOST_DEVICE float cugar::Gaussian_distribution_2d::density ( const Vector2f  x ) const

inline

probability density function

Parameters

x	sample location

map()

CUGAR_HOST_DEVICE Vector2f cugar::Gaussian_distribution_2d::map ( const Vector2f  uv ) const

inline

transform a uniformly distributed vector through the distribution

Parameters

uv	real numbers to transform

mean()

CUGAR_HOST_DEVICE Vector2f cugar::Gaussian_distribution_2d::mean ( ) const

inline

return the mean vector

precision()

CUGAR_HOST_DEVICE const Matrix2x2f& cugar::Gaussian_distribution_2d::precision ( ) const

inline

return the precision matrix

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

• C:/p4research/research/jpantaleoni/Fermat-Public/contrib/cugar/sampling/distributions.h