scram::mef::LognormalDeviate::Logarithmic

Computation with the log-normal mean and error factor.

Inherits from scram::mef::LognormalDeviate::Flavor

Public Functions

	Name
	Logarithmic(Expression * mean, Expression * ef, Expression * level)<br>The log-normal deviate parametrization with its expected value and error factor of certain confidence level.
double	scale() override
double	location() override
double	mean() override
void	Validate() const override

Public Functions Documentation

function Logarithmic

inline Logarithmic(
    Expression * mean,
    Expression * ef,
    Expression * level
)

The log-normal deviate parametrization with its expected value and error factor of certain confidence level.

Parameters:

• mean The mean of the log-normal distribution not the mean of underlying normal distribution, which is parameter mu. mu is the location parameter, sigma is the scale factor. E(x) = exp(mu + sigma^2 / 2)
• ef The error factor of the log-normal distribution. EF = exp(z_alpha * sigma)
• level The confidence level.

function scale

double scale() override

function location

double location() override

function mean

inline double mean() override

function Validate

void Validate() const override

Exceptions:

• DomainError (mean <= 0) or (ef <= 0) or invalid level.

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Updated on 2025-11-11 at 16:51:08 +0000