Espacios de nombres
Variantes
Acciones

std::discrete_distribution

De cppreference.com
< cpp‎ | numeric‎ | random

 
 
Numéricos biblioteca
Funciones matemáticas comunes
Floating-point medio ambiente
Los números complejos
Matrices numéricas
Pseudo-aleatoria de generación de números
En tiempo de compilación aritmética racional (C++11)
Genéricos operaciones numéricas
Original:
Generic numeric operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
(C++11)
 
Pseudo-aleatoria de generación de números
Motores y adaptadores de motor
Original:
Engines and engine adaptors
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Generadores
Original:
Generators
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Distribuciones
Original:
Distributions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Distribuciones uniformes
Original:
Uniform distributions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Bernoulli distribuciones
Original:
Bernoulli distributions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Poisson distribuciones
Original:
Poisson distributions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Distribuciones normales
Original:
Normal distributions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Distribuciones de muestreo
Original:
Sampling distributions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
discrete_distribution
(C++11)
Secuencias de semillas
Original:
Seed Sequences
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
(C++11)
C biblioteca
Original:
C library
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
 
std::discrete_distribution
Las funciones miembro
Original:
Member functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Generación
Original:
Generation
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Características
Original:
Characteristics
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Terceros funciones
Original:
Non-member functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
 
Definido en la cabecera <random>
template< class IntType = int >
class discrete_distribution;
(desde C++11)
std::discrete_distribution produce enteros aleatorios en el intervalo [0, n), donde se define la probabilidad de cada individuo como i entero w
i
/S
, es decir el peso' del entero ith dividido por la suma de todos los pesos n .
Original:
std::discrete_distribution produces random integers on the interval [0, n), where the probability of each individual integer i is defined as w
i
/S
, that is the weight of the ith integer divided by the sum of all n weights.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Contenido

[editar] Tipos de miembros

Miembro de tipo
Original:
Member type
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Definition
result_type IntType
param_type
el tipo del conjunto de parámetros, sin especificar
Original:
the type of the parameter set, unspecified
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[editar] Las funciones miembro

construye nueva distribución
Original:
constructs new distribution
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(función miembro público) [editar]
restablece el estado interno de la distribución
Original:
resets the internal state of the distribution
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(función miembro público) [editar]
Generación
Original:
Generation
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
genera el siguiente número aleatorio en la distribución
Original:
generates the next random number in the distribution
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(función miembro público) [editar]
Características
Original:
Characteristics
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
obtiene la lista de probabilidades
Original:
obtains the list of probabilities
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(función miembro público) [editar]
obtiene o establece el objeto de parámetro de distribución
Original:
gets or sets the distribution parameter object
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(función miembro público) [editar]
devuelve el valor mínimo potencialmente generado
Original:
returns the minimum potentially generated value
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(función miembro público) [editar]
devuelve el valor máximo potencialmente generado
Original:
returns the maximum potentially generated value
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(función miembro público) [editar]

[editar] Terceros funciones

compara dos objetos de distribución
Original:
compares two distribution objects
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(función) [editar]
realiza flujo de entrada y salida en la distribución de números pseudo-aleatorios
Original:
performs stream input and output on pseudo-random number distribution
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(función) [editar]

[editar] Ejemplo

#include <iostream>
#include <map>
#include <random>
 
int main()
{
    std::random_device rd;
    std::mt19937 gen(rd());
    std::discrete_distribution<> d({40, 10, 10, 40});
    std::map<int, int> m;
    for(int n=0; n<10000; ++n) {
        ++m[d(gen)];
    }
    for(auto p : m) {
        std::cout << p.first << " generated " << p.second << " times\n";
    }
}

Salida:

0 generated 4028 times
1 generated 978 times
2 generated 1012 times
3 generated 3982 times