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std::discrete_distribution::probabilities

Da cppreference.com

 
 
Biblioteca numéricos
Funções matemáticas comuns
De ponto flutuante ambiente
Números complexos
Matrizes numéricas
Pseudo-aleatório de geração de números
Tempo de compilação aritmética racional (C++11)
Genéricos operações numéricas
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Generic numeric operations
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iota(C++11)
accumulate
inner_product
adjacent_difference
partial_sum
 
Pseudo-aleatório de geração de números
Motores e adaptadores de motor
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Engines and engine adaptors
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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)
Geradores
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Generators
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random_device(C++11)
Distribuições
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Distributions
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Distribuições uniformes
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Uniform distributions
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uniform_int_distribution(C++11)
uniform_real_distribution(C++11)
generate_canonical(C++11)
Distribuições de Bernoulli
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Bernoulli distributions
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bernoulli_distribution(C++11)
binomial_distribution(C++11)
negative_binomial_distribution(C++11)
geometric_distribution(C++11)
Distribuições de Poisson
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Poisson distributions
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poisson_distribution(C++11)
exponential_distribution(C++11)
gamma_distribution(C++11)
weibull_distribution(C++11)
extreme_value_distribution(C++11)
Distribuições normais
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Normal distributions
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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)
Distribuições de amostragem
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Sampling distributions
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discrete_distribution(C++11)
piecewise_constant_distribution(C++11)
piecewise_linear_distribution(C++11)
Seqüências de sementes
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Seed Sequences
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C biblioteca
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C library
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rand
srand
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std::discrete_distribution
Funções de membro
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Member functions
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discrete_distribution::discrete_distribution
discrete_distribution::reset
Geração
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Generation
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discrete_distribution::operator()
Características
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Characteristics
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discrete_distribution::probabilities
discrete_distribution::param
discrete_distribution::min
discrete_distribution::max
Não-membros funções
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Non-member functions
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operator==
operator!=
operator<<
operator>>
 
std::vector<double> probabilities() const;
(a partir do C++ 11)
Obtém-se uma std::vector<double> contendo as probabilidades individuais de cada um número inteiro que é gerada por esta distribuição.
Original:
Obtains a std::vector<double> containing the individual probabilities of each integer that is generated by this distribution.
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[editar] Parâmetros

(Nenhum)
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(none)
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[editar] Valor de retorno

Um objeto de std::vector<double> tipo
Original:
An object of type std::vector<double>
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[editar] Exemplo

#include <iostream>
#include <vector>
#include <random>
int main()
{
    std::discrete_distribution<> d({40, 10, 10, 40});
    std::vector<double> p = d.probabilities();
    for(auto n : p)
        std::cout << n << ' ';
    std::cout << '\n';
}

Output:

0.4 0.1 0.1 0.4