Probabilities.LogWeibullCDFInv Method

Overload List

#SignatureDescription
1procedure LogWeibullCDFInv(const P: TDenseMtxVec; a: Double; b: Double; const Res: TDenseMtxVec);Log-Weibull distribution PPF (vectorized).
2function LogWeibullCDFInv(p: Double; a: Double; b: Double): Double;Log-Weibull distribution point percent function (PPF).

Overload 1: procedure LogWeibullCDFInv(const P: TDenseMtxVec; a: Double; b: Double; const Res: TDenseMtxVec);

Log-Weibull distribution PPF (vectorized).

#NameDescription
1PDefines distribution probabilities, real vector or matrix with values within closed interval [0,1].
2aDistribution location parameter, real positive value.
3bDistribution scale parameter, real positive value.
4ResAfter calculation stores the PPF calculated from P, a and b. Length and Complex properties of Res are adjusted automatically to match Length and Complex properties of P.

Result: stored in self (calling object)

Overload 2: function LogWeibullCDFInv(p: Double; a: Double; b: Double): Double;

Log-Weibull distribution point percent function (PPF).

#NameDescription
1pProbability, real value on closed interval [0,1].
2aDistribution location parameter, real value.
3bDistribution scale parameter, real positive value.

Returns: Double - the Log-Weibull distribution point percent function (PPF) for probability p using the parameters a and b. p must lie in [0,1], otherwise the result is NAN.

Remarks:

The inverse log-Weibull cumulative distribution function (quantile) is

CDF^(-1)(p| a,b)=a-b ln(-ln p)

Domain: probability p in [0,1], a any real value, scale b > 0. For p < 0 or p > 1 the result is NAN.

See Also: Probabilities.LogWeibullPDF, Probabilities.LogWeibullCDF