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std::discrete_distribution::probabilities

De cppreference.com

 
 
Bibliothèque Numerics
Fonctions mathématiques courantes
Virgule flottante environnement
Nombres complexes
Tableaux numériques
La génération de nombres pseudo-aléatoires
Moment de la compilation arithmétique rationnelle (C++11)
Génériques des opérations numériques
Original:
Generic numeric operations
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iota (C++11)
accumulate
inner_product
adjacent_difference
partial_sum
 
La génération de nombres pseudo-aléatoires
Les moteurs et les adaptateurs de moteur
Original:
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)
Générateurs
Original:
Generators
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random_device (C++11)
Les distributions
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Distributions
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Distributions 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)
Distributions 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)
Distributions 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)
Les distributions normales
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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)
Distributions d'échantillonnage
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Sampling distributions
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discrete_distribution (C++11)
piecewise_constant_distribution (C++11)
piecewise_linear_distribution (C++11)
Séquences de semences
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Seed Sequences
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seed_seq (C++11)
Bibliothèque C
Original:
C library
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rand
srand
RAND_MAX
 
std::discrete_distribution
Les fonctions membres
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Member functions
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discrete_distribution::discrete_distribution
discrete_distribution::reset
Génération
Original:
Generation
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discrete_distribution::operator()
Caractéristiques
Original:
Characteristics
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discrete_distribution::probabilities
discrete_distribution::param
discrete_distribution::min
discrete_distribution::max
Tiers fonctions
Original:
Non-member functions
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operator==
operator!=
operator<<
operator>>
 
std::vector<double> probabilities() const;
(depuis C++11)
Obtient un std::vector<double> contenant les probabilités individuelles de chaque entier qui est généré par cette distribution .
Original:
Obtains a std::vector<double> containing the individual probabilities of each integer that is generated by this distribution.
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[modifier] Paramètres

(Aucun)
Original:
(none)
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[modifier] Retourne la valeur

Un objet de std::vector<double> type
Original:
An object of type std::vector<double>
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[modifier] Exemple

#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';
}

Résultat :

0.4 0.1 0.1 0.4