std::lognormal_distribution<RealType>::m, s

 

C++

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Freestanding and hosted

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Standard library headers

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Feature test macros (C++20)

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Concepts library (C++20)

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Execution control library (C++26)

Technical specifications

Symbols index

External libraries

 

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gcd (C++17)	lcm (C++17)
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iota (C++11) ranges::iota (C++23) accumulate inner_product adjacent_difference    partial_sum	reduce (C++17) transform_reduce (C++17) inclusive_scan (C++17) exclusive_scan (C++17) transform_inclusive_scan (C++17) transform_exclusive_scan (C++17)
C-style checked integer arithmetic
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::lognormal_distribution

Member functions

lognormal_distribution::lognormal_distribution

lognormal_distribution::reset

Generation

lognormal_distribution::operator()

Characteristics

lognormal_distribution::mlognormal_distribution::s

lognormal_distribution::param

lognormal_distribution::min

lognormal_distribution::max

Non-member functions

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

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

 

RealType m() const;	(1)	(since C++11)
RealType s() const;	(2)	(since C++11)

Returns the parameters the distribution was constructed with.

1) Returns the log-mean m distribution parameter. It defines the location of the peak. The default value is 0.0.

2) Returns the log-deviation s distribution parameter. The default value is 1.0.

Parameters

(none)

Return value

1) The log-mean m distribution parameter.

2) The log-deviation s distribution parameter.

See also

param (C++11)

gets or sets the distribution parameter object (public member function)