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Showing content from https://cplusplus.com/lognormal_distribution::lognormal_distribution below:

public member function

<random>

explicit lognormal_distribution ( result_type m = 0.0, result_type s = 1.0 );

explicit lognormal_distribution ( const param_type& parm );

Construct lognormal distribution

m

Mean of the underlying normal distribution formed by the logarithm transformations of the possible values in this distribution.
result_type is a member type that represents the type of the random numbers generated on each call to operator(). It is defined as an alias of the first class template parameter (RealType).

s

Standard deviation of the underlying normal distribution formed by the logarithm transformations of the possible values in this distribution.
This shall be a positive value (s>0).
result_type is a member type that represents the type of the random numbers generated on each call to operator(). It is defined as an alias of the first class template parameter (RealType).

parm

An object representing the distribution's parameters, obtained by a call to member function param.
param_type is a member type.

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// lognormal_distribution example
#include <iostream>
#include <chrono>
#include <random>

int main()
{
  // construct a trivial random generator engine from a time-based seed:
  unsigned seed = std::chrono::system_clock::now().time_since_epoch().count();
  std::default_random_engine generator (seed);

  std::lognormal_distribution<double> distribution (0.0,1.0);

  std::cout << "some lognormal-distributed(0.0,1.0) results:" << std::endl;
  for (int i=0; i<10; ++i)
    std::cout << distribution(generator) << std::endl;

  return 0;
}

some lognormal-distributed(0.0,1.0) results:
1.76931
0.426828
2.13448
3.41825
0.574683
1.7239
1.49771
1.27637
0.371665
1.13434

lognormal_distribution::reset

Reset distribution (public member function)

lognormal_distribution::param

Distribution parameters (public member function)

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