randpoisson.cc File Reference

#include <cmath>
#include <cstddef>
#include "f77-fcn.h"
#include "lo-error.h"
#include "lo-ieee.h"
#include "randmtzig.h"
#include "randpoisson.h"

Include dependency graph for randpoisson.cc:

Go to the source code of this file.

Macros
#define	C0   9.18938533204672742e-01
#define	C1   8.33333333333333333e-02
#define	C3   -2.77777777777777778e-03
#define	C5   7.93650793650793651e-04
#define	C7   -5.95238095238095238e-04
#define	TABLESIZE   46

Functions
static double	f (double k, double l_nu, double c_pm)
static double	flogfak (double k)
template<typename T >
static void	poisson_cdf_lookup (double lambda, T *p, std::size_t n)
template<typename T >
static void	poisson_rejection (double lambda, T *p, std::size_t n)
static double	pprsc (double my)
template<typename T >
T	rand_poisson (T L_arg)
template<typename T >
void	rand_poisson (T L_arg, octave_idx_type n, T *p)
template OCTAVE_API double	rand_poisson< double > (double)
template void	rand_poisson< double > (double, octave_idx_type, double *)
template OCTAVE_API float	rand_poisson< float > (float)
template void	rand_poisson< float > (float, octave_idx_type, float *)
static double	xlgamma (double x)

Macro Definition Documentation

C0

#define C0   9.18938533204672742e-01

C1

#define C1   8.33333333333333333e-02

C3

#define C3   -2.77777777777777778e-03

C5

#define C5   7.93650793650793651e-04

C7

#define C7   -5.95238095238095238e-04

TABLESIZE

#define TABLESIZE   46

Definition at line 290 of file randpoisson.cc.

Function Documentation

f()

static double f ( double  k, double  l_nu, double  c_pm  )

static

Definition at line 118 of file randpoisson.cc.

References flogfak().

Referenced by pprsc().

flogfak()

static double flogfak ( double  k )

static

Definition at line 52 of file randpoisson.cc.

References C0, C1, C3, C5, C7, and r.

Referenced by f(), poisson_rejection(), and pprsc().

poisson_cdf_lookup()

template<typename T >

static void poisson_cdf_lookup ( double  lambda, T *  p, std::size_t  n  )

static

Definition at line 296 of file randpoisson.cc.

References floor(), n, rand_uniform< double >(), and TABLESIZE.

poisson_rejection()

template<typename T >

static void poisson_rejection ( double  lambda, T *  p, std::size_t  n  )

static

Definition at line 361 of file randpoisson.cc.

References flogfak(), floor(), n, rand_uniform< double >(), and xlgamma().

pprsc()

static double pprsc ( double  my )

static

Definition at line 123 of file randpoisson.cc.

References ceil(), f(), flogfak(), floor(), m, rand_uniform< double >(), and V.

Referenced by rand_poisson().

rand_poisson() [1/2]

template<typename T >

T rand_poisson

(

T

L_arg

)

Definition at line 433 of file randpoisson.cc.

References floor(), lo_ieee_isinf, and NaN.

rand_poisson() [2/2]

template<typename T >

void rand_poisson	(	T	L_arg,
		octave_idx_type	n,
		T *	p
	)

Definition at line 398 of file randpoisson.cc.

References floor(), lo_ieee_isinf, n, NaN, and pprsc().

rand_poisson< double >() [1/2]

template OCTAVE_API double rand_poisson< double >

(

double

)

rand_poisson< double >() [2/2]

template void rand_poisson< double >	(	double	,
		octave_idx_type	,
		double *
	)

Referenced by rand::fill(), and rand::poisson().

rand_poisson< float >() [1/2]

template OCTAVE_API float rand_poisson< float >

(

float

)

rand_poisson< float >() [2/2]

template void rand_poisson< float >	(	float	,
		octave_idx_type	,
		float *
	)

Referenced by rand::fill().

xlgamma()

static double xlgamma ( double  x )

static

Definition at line 44 of file randpoisson.cc.

References lgamma(), and x.

Referenced by poisson_rejection().