Overload List
| # | Signature | Description |
|---|---|---|
| 1 | procedure WeibullCDFInv(const P: TDenseMtxVec; A: Double; B: Double; const Res: TDenseMtxVec); | Weibull distribution PPF (vectorized). |
| 2 | function WeibullCDFInv(p: Double; a: Double; b: Double): Double; | Weibull distribution point percent function (PPF). |
Overload 1: procedure WeibullCDFInv(const P: TDenseMtxVec; A: Double; B: Double; const Res: TDenseMtxVec);
Weibull distribution PPF (vectorized).
| # | Name | Description |
|---|---|---|
| 1 | P | Defines distribution probabilities, real vector or matrix with values within closed interval [0,1]. |
| 2 | A | Distribution scale parameter, real positive value. |
| 3 | B | Distribution shape parameter, real positive value. |
| 4 | Res | After 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 WeibullCDFInv(p: Double; a: Double; b: Double): Double;
Weibull distribution point percent function (PPF).
| # | Name | Description |
|---|---|---|
| 1 | p | Probability, real value on closed interval [0,1]. |
| 2 | a | Distribution scale parameter, real positive value (rate-like). |
| 3 | b | Distribution shape parameter, real positive value. |
Returns: Double - the Weibull distribution point percent function (PPF) for probability p using the parameters a and b. p must lie in [0,1] and a, b must be positive, otherwise the result is NAN.
Remarks:
The inverse Weibull cumulative distribution function (quantile) is
CDF^(-1)(p| a,b)=[1/aln1/(1-p)]^(1/b), 0 <= p lt; 1
Domain: probability p in [0,1], a > 0, b > 0. At p = 1 the result is +INF. For p < 0, p > 1, a <= 0, or b <= 0 the result is NAN.
See Also: Probabilities.WeibullPDF, Probabilities.WeibullCDF