sig
type t = { nbinomial_failures : int; nbinomial_p : float; }
type elt = int
val sample : ?rng:Gsl.Rng.t -> size:int -> t -> elt array
val cumulative_probability : t -> n:elt -> float
val probability : t -> n:elt -> float
val mean : t -> float
val variance : t -> float
val skewness : t -> float
val kurtosis : t -> float
val create : failures:int -> p:float -> Distributions.NegativeBinomial.t
val mme : int array -> Distributions.NegativeBinomial.t
end