std::normal_distribution<RealType>::normal_distribution

 

C++

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Symbols index

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ckd_add (C++26) ckd_sub (C++26)	ckd_mul (C++26)

 

Pseudo-random number generation

Uniform random bit generators   uniform_random_bit_generator (C++20) Random number engines linear_congruential_engine (C++11) mersenne_twister_engine (C++11) subtract_with_carry_engine (C++11) philox_engine (C++26) Random number engine adaptors discard_block_engine (C++11) independent_bits_engine (C++11) shuffle_order_engine (C++11) Predefined random number generators Non-deterministic random numbers random_device (C++11) Utilities generate_canonical (C++11) seed_seq (C++11) Random number algorithms ranges::generate_random (C++26) C random library rand    srand    RAND_MAX

Random number distributions Uniform distributions uniform_int_distribution (C++11) uniform_real_distribution (C++11) generate_canonical (C++11) Bernoulli distributions bernoulli_distribution (C++11) binomial_distribution (C++11) negative_binomial_distribution (C++11) geometric_distribution (C++11) Poisson distributions poisson_distribution (C++11) exponential_distribution (C++11) gamma_distribution (C++11) weibull_distribution (C++11) extreme_value_distribution (C++11) Normal distributions 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) Sampling distributions discrete_distribution (C++11) piecewise_constant_distribution (C++11) piecewise_linear_distribution (C++11)

 

std::normal_distribution

Member functions

normal_distribution::normal_distribution (C++11)

normal_distribution::reset (C++11)

Generation

normal_distribution::operator() (C++11)

Characteristics

normal_distribution::meannormal_distribution::stddev (C++11)(C++11)

normal_distribution::param (C++11)

normal_distribution::min (C++11)

normal_distribution::max (C++11)

Non-member functions

operator==operator!= (C++11)(C++11)(until C++20)

operator<<operator>> (C++11)(C++11)

 

normal_distribution() : normal_distribution(0.0) {}	(1)	(since C++11)
explicit normal_distribution( RealType mean, RealType stddev = 1.0 );	(2)	(since C++11)
explicit normal_distribution( const param_type& params );	(3)	(since C++11)

Constructs a new distribution object.

2) Uses mean and stddev as the distribution parameters.

3) Uses params as the distribution parameters.

The behavior is undefined if stddev is not greater than zero.

Parameters

mean	-	the μ distribution parameter (mean)
stddev	-	the σ distribution parameter (standard deviation)
params	-	the distribution parameter set

Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR	Applied to	Behavior as published	Correct behavior
P0935R0	C++11	default constructor was explicit	made implicit