LR_obj Struct Reference

the fundamental LibRan random variate distribution object More...

#include <libran.h>

Collaboration diagram for LR_obj:

Data Fields
const char const *	type
LR_type	t
LR_data_type	d
LR_val	a
LR_val	b
LR_val	m
LR_val	s
LR_val	x
int	k
int	n
float	p
float	q
LR_val	iy
LR_val	iy0
int(*	ui )(LR_obj *)
long(*	ul )(LR_obj *)
float(*	uf )(LR_obj *)
double(*	ud )(LR_obj *)
float(*	rnf )(LR_obj *)
double(*	rnd )(LR_obj *)
int(*	rni )(LR_obj *)
float(*	pdff )(LR_obj *, float)
double(*	pdfd )(LR_obj *, double)
float(*	pdfi )(LR_obj *, int)
float(*	cdff )(LR_obj *, float)
double(*	cdfd )(LR_obj *, double)
float(*	cdfi )(LR_obj *, int)
void *	aux
int	errno

Detailed Description

the fundamental LibRan random variate distribution object

The LR_obj object is the fundemental LibRan random variate distribution object containing the basic attributes defining the specific distribution characteristics.

If the built-in pseudo-random number generator is used then the generator values are also stored within the object to allow each object to act independently.

Other of the attributes serve the object-oriented aspect of the LR_obj object by having pointers to the random variate distribution's RAN, PDF, and CDF functions.

Some random variate distributions (e.g. piece and lspline ) require auxiliary methods to define the distribution.

Lastly there is errno which contains the last error number encountered. Use LR_perror() to display the error description.

Definition at line 134 of file libran.h.

Field Documentation

a

LR_val a

a - lower bound of interval

Definition at line 138 of file libran.h.

aux

void* aux

aux - auxiliary object

Definition at line 168 of file libran.h.

b

LR_val b

b - upper bound of interval

Definition at line 139 of file libran.h.

cdfd

double(* cdfd) (LR_obj *, double)

cdfd - double _CDF fn

Definition at line 165 of file libran.h.

cdff

float(* cdff) (LR_obj *, float)

cdff - float _CDF fn

Definition at line 164 of file libran.h.

cdfi

float(* cdfi) (LR_obj *, int)

cdfi - float _PDF fn generic (void) pointer to some other object

Definition at line 166 of file libran.h.

d

LR_data_type d

d - data type

Definition at line 137 of file libran.h.

errno

int errno

errno - last error encountered

Definition at line 169 of file libran.h.

iy

LR_val iy

iy - current random number sequence value

Definition at line 148 of file libran.h.

iy0

LR_val iy0

iy0- initial random number sequence value set of uniform random number generators - one for each data type

Definition at line 149 of file libran.h.

k

int k

k - integer attribute

Definition at line 143 of file libran.h.

m

LR_val m

m - middle value of distribution

Definition at line 140 of file libran.h.

n

int n

n - integer attribute

Definition at line 144 of file libran.h.

p

float p

p - float attribute

Definition at line 145 of file libran.h.

pdfd

double(* pdfd) (LR_obj *, double)

pdfd - double _PDF fn

Definition at line 161 of file libran.h.

pdff

float(* pdff) (LR_obj *, float)

pdff - float _PDF fn

Definition at line 160 of file libran.h.

pdfi

float(* pdfi) (LR_obj *, int)

pdfi - float _PDF fn set of CDFs for this distribution type

Definition at line 162 of file libran.h.

q

float q

q - float attribute object random values

Definition at line 146 of file libran.h.

rnd

double(* rnd) (LR_obj *)

rnd - double _RAN fn

Definition at line 157 of file libran.h.

rnf

float(* rnf) (LR_obj *)

rnf - float _RAN fn

Definition at line 156 of file libran.h.

rni

int(* rni) (LR_obj *)

rni - int _RAN fn set of PDFs for this distribution type

Definition at line 158 of file libran.h.

s

LR_val s

s - measure of distribution width

Definition at line 141 of file libran.h.

t

LR_type t

t - distribution type

Definition at line 136 of file libran.h.

type

const char const* type

named distribution type

Definition at line 135 of file libran.h.

ud

double(* ud) (LR_obj *)

ud - double random number fn set of Random Fns for this distribution type

Definition at line 154 of file libran.h.

uf

float(* uf) (LR_obj *)

uf - float random number fn

Definition at line 153 of file libran.h.

ui

int(* ui) (LR_obj *)

ui - int random number fn

Definition at line 151 of file libran.h.

ul

long(* ul) (LR_obj *)

ul - long random number fn

Definition at line 152 of file libran.h.

x

LR_val x

x - auxiliary value

Definition at line 142 of file libran.h.

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

• libran.h