Probabilities::LogisticPDF Function

Probabilities Namespace

Overload List

#SignatureDescription
1double LogisticPDF(double x, double m, double b);Logistic probability density function (PDF).
2void LogisticPDF(TDenseMtxVec *X, double m, double b, TDenseMtxVec *Res);Logistic PDF (vectorized).

Overload 1: double LogisticPDF(double x, double m, double b);

Logistic probability density function (PDF).

#NameTypeDescription
1xdoubleFunction domain, real value.
2mdoubleDistribution location parameter, real value.
3bdoubleDistribution scale parameter, real positive value.

Returns: the logistic probability density function (PDF) for value x using the parameters m and b. For b <= 0 the result is NAN.

Remarks:

The logistic probability density function is

PDF(x| m,b)=(exp(-(x-m)/b))/(b(1+exp(-(x-m)/b))^2)

Domain: x any real value, location m any real value, scale b > 0. For b <= 0 the result is NAN.

See Also: Probabilities::LogisticCDF, Probabilities::LogisticCDFInv
Declared in Dew::Math::Units::Probabilities · Dew.Math/Units.Probabilities.h · Cross-compiler

Overload 2: void LogisticPDF(TDenseMtxVec *X, double m, double b, TDenseMtxVec *Res);

Logistic PDF (vectorized).

#NameTypeDescription
1XTDenseMtxVec *Defines distribution domain, real vector or matrix.
2mdoubleDistribution location parameter, real value.
3bdoubleDistribution scale parameter, real positive value.
4ResTDenseMtxVec *After calculation stores the PDF calculated from X, m and b. Length and Complex properties of Res are adjusted automatically to match Length and Complex properties of X.
Declared in Dew::Math::Units::Probabilities · Dew.Math/Units.Probabilities.h · Cross-compiler