# Spec Log-Normal Pdf
Log-normal probability density function.

Extends | Pdf
All Extended | Pdf
Defined in | <seqan/random.h>
Signature | `template <> class Pdf<LogNormal>;`

## Member Function Overview

- `Pdf::Pdf(mu, sigma[, MuSigma()]);, Pdf::Pdf(mean, stdDev, MeanStdDev());`
  Constructor for log-normal Pdf.

## Interface Metafunction Overview

### Interface Metafunctions Inherited From Pdf

- `Value`

## Detailed Description

### Remarks

Note that you can construct this either with mu/sigma of the underlying normal distribution (default) or with the mean and standard deviation of the log-normal distribution.

## Member Functions Detail

### `Pdf::Pdf(mu, sigma[, MuSigma()]); Pdf::Pdf(mean, stdDev, MeanStdDev());`

Constructor for log-normal Pdf.

#### Parameters

`mu` | Mean of the underlying normal distribution, double.
`sigma` | Standard deviation of the underlying normal distribution, double.
`mean` | Mean of the log-normal distribution, double.
`stdDev` | Standard deviation of the log-normal distribution, double.

#### Data Races

Thread safety unknown!

#### Dox Sources

    /*!
     * @class LogNormalPdf Log-Normal Pdf
     *
     * @extends Pdf
     *
     * @headerfile <seqan/random.h>
     *
     * @brief Log-normal probability density function.
     *
     * @signature template <> class Pdf<LogNormal>;
     *
     * @section Remarks
     *
     * Note that you can construct this either with mu/sigma of the underlying
     * normal distribution (default) or with the mean and standard deviation of the
     * log-normal distribution.
     *
     * @fn LogNormalPdf::Pdf
     *
     * @brief Constructor for log-normal Pdf.
     *
     * @signature Pdf::Pdf(mu, sigma[, MuSigma()]);
     * @signature Pdf::Pdf(mean, stdDev, MeanStdDev());
     *
     * @param[in] mu Mean of the underlying normal distribution, double.
     * @param[in] sigma Standard deviation of the underlying normal distribution,
     *                  double.
     * @param[in] mean Mean of the log-normal distribution, double.
     * @param[in] stdDev Standard deviation of the log-normal distribution, double.
     */