Overload List
| # | Signature | Description |
|---|---|---|
| 1 | double PoissonCDF(int x, double Lambda); | Poisson cumulative distribution function (CDF). |
| 2 | void PoissonCDF(TMtxVecInt *X, double Lambda, TDenseMtxVec *Res); | Poisson distribution CDF (vectorized). |
Overload 1: double PoissonCDF(int x, double Lambda);
Poisson cumulative distribution function (CDF).
| # | Name | Type | Description |
|---|---|---|---|
| 1 | x | int | Function domain, non-negative integer. |
| 2 | Lambda | double | Rate parameter, real positive value. |
Returns: the Poisson cumulative distribution function (CDF) at x using parameter Lambda. Returns NAN when Lambda<=0.
Remarks:
Computes the Poisson CDF P(X <= x):
CDF(x|lambda)=e^(-lambda)sum_(j=0)^xlambda^j/j!=Q(x+1,lambda)
where Q(a,lambda) is the regularized upper incomplete gamma function (the implementation evaluates Q(x+1,lambda)). Domain: x >= 0, lambda>0; for lambda <= 0 the result is NaN and for x<0 the result is 0.
Declared in Dew::Math::Units::Probabilities · Dew.Math/Units.Probabilities.h · Cross-compiler
Overload 2: void PoissonCDF(TMtxVecInt *X, double Lambda, TDenseMtxVec *Res);
Poisson distribution CDF (vectorized).
| # | Name | Type | Description |
|---|---|---|---|
| 1 | X | TMtxVecInt * | Distribution domain, positive integer values or zeros. |
| 2 | Lambda | double | Distribution parameter, real positive value. |
| 3 | Res | TDenseMtxVec * | After calculation stores the CDF calculated from X, alpha and beta. 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