Espacios de nombres
Variantes
Acciones

std::piecewise_constant_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.
iota(C++11)
accumulate
inner_product
adjacent_difference
partial_sum
 
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.
linear_congruential_engine(C++11)
mersenne_twister_engine(C++11)
subtract_with_carry_engine(C++11)
discard_block_engine(C++11)
independent_bits_engine(C++11)
shuffle_order_engine(C++11)
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.
random_device(C++11)
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.
uniform_int_distribution(C++11)
uniform_real_distribution(C++11)
generate_canonical(C++11)
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.
bernoulli_distribution(C++11)
binomial_distribution(C++11)
negative_binomial_distribution(C++11)
geometric_distribution(C++11)
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.
poisson_distribution(C++11)
exponential_distribution(C++11)
gamma_distribution(C++11)
weibull_distribution(C++11)
extreme_value_distribution(C++11)
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.
normal_distribution(C++11)
lognormal_distribution(C++11)
chi_squared_distribution(C++11)
cauchy_distribution(C++11)
fisher_f_distribution(C++11)
student_t_distribution(C++11)
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)
piecewise_constant_distribution(C++11)
piecewise_linear_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.
seed_seq(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.
rand
srand
RAND_MAX
 
std::piecewise_constant_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.
piecewise_constant_distribution::piecewise_constant_distribution
piecewise_constant_distribution::reset
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.
piecewise_constant_distribution::operator()
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.
piecewise_constant_distribution::intervals
piecewise_constant_distribution::densities
piecewise_constant_distribution::param
piecewise_constant_distribution::min
piecewise_constant_distribution::max
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.
operator==
operator!=
operator<<
operator>>
 
Defined in header <random>
template< class RealType = double >
class piecewise_constant_distribution;
(desde C++11)
std::piecewise_constant_distribution produce al azar números de punto flotante, que están distribuidos uniformemente dentro de cada uno de los subintervalos [b
i
, b
i+1
)
varios, cada uno con su propio peso w
i
. El conjunto de límites de intervalo y el conjunto de ponderaciones son los parámetros de esta distribución .
Original:
std::piecewise_constant_distribution produces random floating-point numbers, which are uniformly distributed within each of the several subintervals [b
i
, b
i+1
)
, each with its own weight w
i
. The set of interval boundaries and the set of weights are the parameters of this distribution.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
La densidad de probabilidad para cualquier b
i
≤x<b
i+1
es None
w
k
S (b
i+1
- b
i
)
. donde S es la suma de todos los pesos .
Original:
The probability density for any b
i
≤x<b
i+1
is None
w
k
S (b
i+1
- b
i
)
. where S is the sum of all 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 RealType
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.

(miembro público función) [edit]
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.

(miembro público función) [edit]
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.

(miembro público función) [edit]
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 límites del intervalo
Original:
obtains the list of interval boundaries
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(miembro público función) [edit]
obtiene la lista de las densidades de probabilidad
Original:
obtains the list of probability densities
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(miembro público función) [edit]
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.

(miembro público función) [edit]
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.

(miembro público función) [edit]
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.

(miembro público función) [edit]

[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) [edit]
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) [edit]

[editar] Ejemplo

#include <iostream>
#include <string>
#include <map>
#include <random>
 
int main()
{
    std::random_device rd;
    std::mt19937 gen(rd());
    // 50% of the time, generate a random number between 0 and 1
    // 50% of the time, generate a random number between 10 and 15
    std::vector<double> i{0,  1, 10, 15};
    std::vector<double> w{  1,  0,  1};
    std::piecewise_constant_distribution<> d(i.begin(), i.end(), w.begin());
 
    std::map<int, int> hist;
    for(int n=0; n<10000; ++n) {
        ++hist[d(gen)];
    }
    for(auto p : hist) {
        std::cout << p.first << ' ' << std::string(p.second/100, '*') << '\n';
    }
}

Output:

0 **************************************************
10 **********
11 *********
12 *********
13 **********
14 *********