MathProbabilityDensityLogistic

Calculates the value of the probability density function of logistic distribution with the mu and sigma parameters for a random variable x. In case of error it returns NaN.

double  MathProbabilityDensityLogistic(
   const double  x,             // value of random variable
   const double  mu,            // mean parameter of the distribution
   const double  sigma,         // scale parameter of the distribution
   const bool    log_mode,      // calculate the logarithm of the value, if log_mode=true, then the natural logarithm of the probability density is calculated
   int&          error_code     // variable to store the error code
   );

Calculates the value of the probability density function of logistic distribution with the mu and sigma parameters for a random variable x. In case of error it returns NaN.

double  MathProbabilityDensityLogistic(
   const double  x,             // value of random variable
   const double  mu,            // mean parameter of the distribution
   const double  sigma,         // scale parameter of the distribution
   int&          error_code     // variable to store the error code
   );

Calculates the value of the probability density function of logistic distribution with the mu and sigma parameters for an array of random variables x[]. In case of error it returns false. Analog of the dlogis() in R.

bool  MathProbabilityDensityLogistic(
   const double& x[],            // array with the values of random variable
   const double  mu,             // mean parameter of the distribution
   const double  sigma,          // scale parameter of the distribution
   const bool    log_mode,       // flag to calculate the logarithm of the value, if log_mode=true, then the natural logarithm of the probability density is calculated
   double&       result[]        // array for values of the probability density function
   );

Calculates the value of the probability density function of logistic distribution with the mu and sigma parameters for an array of random variables x[]. In case of error it returns false.

bool  MathProbabilityDensityLogistic(
   const double& x[],            // array with the values of random variable
   const double  mu,             // mean parameter of the distribution
   const double  sigma,          // scale parameter of the distribution
   double&       result[]        // array for values of the probability density function
   );

Parameters

x: [in] Value of random variable.
x[]: [in] Array with the values of random variable.
mu: [in] mean parameter of the distribution.
sigma: [in] scale parameter of the distribution.
log_mode: [in] Flag to calculate the logarithm of the value. If log_mode=true, then the natural logarithm of the probability density is returned.
error_code: [out] Variable to store the error code.
result[]: [out] Array for values of the probability density function.

Last updated on 2026-07-24

MathCumulativeDistributionLogistic