dPoisson¶
- dPoisson(_lambda, k)¶
probability distribution function of a Poisson distribution.
- Parameters:
- lambdafloat,
The intensity of the Poisson distribution.
- kint
The number of success.
- Returns:
- pfloat
The probability to get successes.
Notes
This method implements Loader’s algorithm, the fast and accurate method described in [loader2000], with the further improvements mentioned in [dimitriadis2016].
Examples
>>> import openturns as ot >>> p = ot.DistFunc.dPoisson(5.0, 2)