Espaços nominais
Variantes
Acções

std::gamma_distribution

Da cppreference.com
< cpp‎ | numeric‎ | random

 
 
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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seed_seq(C++11)
C biblioteca
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C library
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rand
srand
RAND_MAX
 
std::gamma_distribution
Funções de membro
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Member functions
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gamma_distribution::gamma_distribution
gamma_distribution::reset
Geração
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Generation
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gamma_distribution::operator()
Características
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Characteristics
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gamma_distribution::alpha
gamma_distribution::beta
gamma_distribution::param
gamma_distribution::min
gamma_distribution::max
Não-membros funções
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Non-member functions
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operator==
operator!=
operator<<
operator>>
 
Defined in header <random>
template< class RealType = double >
class gamma_distribution;
(a partir do C++ 11)
Produz aleatórios valores inteiros positivos x, distribuídos de acordo com a função densidade de probabilidade:
Original:
Produces random positive integer values x, distributed according to probability density function:
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P(x|α,β) =
e-x/β
βα
· Γ(α)
onde α é conhecida como a forma' parâmetro e β é conhecida como a escala de parâmetro'.
Original:
where α is known as the shape parameter and β is known as the scale parameter.
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Para α número inteiro, o valor obtido é a soma de α independentes distribuídos exponencialmente variáveis ​​aleatórias, cada um dos quais tem uma média de β
Original:
For integer α, the value obtained is the sum of α independent exponentially distributed random variables, each of which has a mean of β
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Índice

[editar] Tipos de membro

Tipo de membro
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Member type
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Definition
result_type RealType
param_type
o tipo do conjunto de parâmetros, não especificado
Original:
the type of the parameter set, unspecified
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[editar] Funções de membro

constrói nova distribuição
Original:
constructs new distribution
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(função pública membro) [edit]
redefine o estado interno da distribuição
Original:
resets the internal state of the distribution
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(função pública membro) [edit]
Geração
Original:
Generation
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gera o próximo número aleatório na distribuição
Original:
generates the next random number in the distribution
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(função pública membro) [edit]
Características
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Characteristics
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retorna o parâmetro de distribuição α (forma)
Original:
returns the α distribution parameter (shape)
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(função pública membro) [edit]
retorna o parâmetro de distribuição β (escala)
Original:
returns the β distribution parameter (scale)
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(função pública membro) [edit]
obtém ou define o objeto de parâmetro de distribuição
Original:
gets or sets the distribution parameter object
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(função pública membro) [edit]
retorna o valor mínimo potencialmente gerado
Original:
returns the minimum potentially generated value
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(função pública membro) [edit]
retorna o valor máximo potencialmente gerado
Original:
returns the maximum potentially generated value
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(função pública membro) [edit]

[editar] Não-membros funções

compara dois objetos de distribuição
Original:
compares two distribution objects
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(função) [edit]
executa fluxo de entrada e saída em pseudo-aleatório distribuição de números
Original:
performs stream input and output on pseudo-random number distribution
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(função) [edit]

[editar] Exemplo

[editar] Links externos

Weisstein, Eric W. "Gamma Distribution." De MathWorld - Um recurso Web Wolfram.
Original:
Weisstein, Eric W. "Gamma Distribution." From MathWorld--A Wolfram Web Resource.
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