focal (3) std::student_t_distribution.3cxx.gz

NAME

       std::student_t_distribution< _RealType > - A student_t_distribution random number distribution.

SYNOPSIS

   Classes
       struct param_type

   Public Types
       typedef _RealType result_type

   Public Member Functions
       student_t_distribution (_RealType __n=_RealType(1))
       student_t_distribution (const param_type &__p)
       template<typename _ForwardIterator , typename _UniformRandomNumberGenerator > void __generate
           (_ForwardIterator __f, _ForwardIterator __t, _UniformRandomNumberGenerator &__urng)
       template<typename _ForwardIterator , typename _UniformRandomNumberGenerator > void __generate
           (_ForwardIterator __f, _ForwardIterator __t, _UniformRandomNumberGenerator &__urng, const param_type
           &__p)
       template<typename _UniformRandomNumberGenerator > void __generate (result_type *__f, result_type *__t,
           _UniformRandomNumberGenerator &__urng)
       template<typename _UniformRandomNumberGenerator > void __generate (result_type *__f, result_type *__t,
           _UniformRandomNumberGenerator &__urng, const param_type &__p)
       result_type max () const
           Returns the least upper bound value of the distribution.
       result_type min () const
           Returns the greatest lower bound value of the distribution.
       _RealType n () const
       template<typename _UniformRandomNumberGenerator > result_type operator() (_UniformRandomNumberGenerator
           &__urng)
           Generating functions.
       template<typename _UniformRandomNumberGenerator > result_type operator() (_UniformRandomNumberGenerator
           &__urng, const param_type &__p)
       param_type param () const
           Returns the parameter set of the distribution.
       void param (const param_type &__param)
           Sets the parameter set of the distribution.
       void reset ()
           Resets the distribution state.

   Friends
       template<typename _RealType1 , typename _CharT , typename _Traits > std::basic_ostream< _CharT, _Traits >
           & operator<< (std::basic_ostream< _CharT, _Traits > &__os, const std::student_t_distribution<
           _RealType1 > &__x)
           Inserts a student_t_distribution random number distribution __x into the output stream __os.
       bool operator== (const student_t_distribution &__d1, const student_t_distribution &__d2)
           Return true if two Student t distributions have the same parameters and the sequences that would be
           generated are equal.
       template<typename _RealType1 , typename _CharT , typename _Traits > std::basic_istream< _CharT, _Traits >
           & operator>> (std::basic_istream< _CharT, _Traits > &__is, std::student_t_distribution< _RealType1 >
           &__x)
           Extracts a student_t_distribution random number distribution __x from the input stream __is.

Detailed Description

   template<typename _RealType = double>
       class std::student_t_distribution< _RealType >" A student_t_distribution random number distribution.

       The formula for the normal probability mass function is: p(x|n) = ac{1}{t(ni)}
       ac{Gamma((n+1)/2)}{Gamma(n/2)} (1 + ac{x^2}{n}) ^{-(n+1)/2} ]

       Definition at line 3229 of file random.h.

Author

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