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      std::student_t_distribution

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      < cpp‎ | numeric‎ | random

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      C++
       
      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
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      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
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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)
      Générateurs
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      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
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      C library
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      rand
      srand
      RAND_MAX
       
      std::student_t_distribution
      Les fonctions membres
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      Member functions
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      student_t_distribution::student_t_distribution
      student_t_distribution::reset
      Génération
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      Generation
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      student_t_distribution::operator()
      Caractéristiques
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      Characteristics
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      student_t_distribution::n
      student_t_distribution::param
      student_t_distribution::min
      student_t_distribution::max
      Tiers fonctions
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      Non-member functions
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      operator==
      operator!=
      operator<<
      operator>>
       
      Déclaré dans l'en-tête <random>
      template<class RealType =double>
      class student_t_distribution;
      		 (depuis C++11)
      Produit au hasard valeurs à virgule flottante x, répartis selon la fonction de densité de probabilité:
      Original:
      Produces random floating-point values x, distributed according to probability density function:
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      P(x|n) =
      1
      √nπ
       ·
      Γ(
      n+1
      2
      )
      Γ(
      n
      2
      )
       · ⎛
      ⎜
      ⎝      1+
      x2
      n
      ⎞
      ⎟
      ⎠      -
      n+1
      2

      où n est connu comme le nombre de degrés de' liberté. Cette distribution est utilisée pour estimer la signifie d'une valeur inconnue distribuées normalement donnée n+1 mesures indépendantes, chacune avec erreurs additives d'écart-type inconnu, comme en mesures physiques. Ou, à défaut, lors de l'estimation de la moyenne inconnue d'une distribution normale avec un écart type inconnu, échantillons n+1 donnés .
      Original:
      where n is known as the number of degrees of freedom. This distribution is used when estimating the mean of an unknown normally distributed value given n+1 independent measurements, each with additive errors of unknown standard deviation, as in physical measurements. Or, alternatively, when estimating the unknown mean of a normal distribution with unknown standard deviation, given n+1 samples.
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      Sommaire

      [modifier]Types de membres

      Type du membre Définition
      result_typeRealType
      param_type
      le type du jeu de paramètres, sans précision
      Original:
      the type of the parameter set, unspecified
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      [modifier]Fonctions membres

      construit distribution
      Original:
      constructs new distribution
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      (fonction membre publique)[edit]
      réinitialise l'état interne de la distribution
      Original:
      resets the internal state of the distribution
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      (fonction membre publique)[edit]
      Génération
      Original:
      Generation
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      génère le nombre aléatoire suivant dans la distribution
      Original:
      generates the next random number in the distribution
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      (fonction membre publique)[edit]
      Caractéristiques
      Original:
      Characteristics
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      renvoie le paramètre n la distribution (degrés de liberté)
      Original:
      returns the n distribution parameter (degrees of freedom)
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      (fonction membre publique)[edit]
      obtient ou définit l'objet de paramètre de distribution
      Original:
      gets or sets the distribution parameter object
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      (fonction membre publique)[edit]
      renvoie la valeur minimale potentiellement générées
      Original:
      returns the minimum potentially generated value
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      (fonction membre publique)[edit]
      renvoie la valeur maximale potentiellement générées
      Original:
      returns the maximum potentially generated value
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      (fonction membre publique)[edit]

      [modifier]Fonctions annexes

      compare deux objets de distribution
      Original:
      compares two distribution objects
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      (fonction)[edit]
      effectue flux d'entrée et de sortie sur la distribution de nombre pseudo-aléatoire
      Original:
      performs stream input and output on pseudo-random number distribution
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      (fonction)[edit]

      [modifier]Exemple

      This section is incomplete
      Reason: no example

      [modifier]Liens externes

      Weisstein, Eric W. "Student's t-Distribution." De MathWorld - Une ressource Web Wolfram .
      Original:
      Weisstein, Eric W. "Student's t-Distribution." From MathWorld--A Wolfram Web Resource.
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