A binomial_distribution random number distribution produces integer values i ≥ 0 distributed according to the discrete probability function P(i | t,p) = t i · pi · (1-p)t-i .
template<class IntType = int> class binomial_distribution{ public: // types typedef IntType result_type; typedef unspecified param_type; // constructors and reset functions explicit binomial_distribution(IntType t = 1, double p = 0.5); explicit binomial_distribution(const param_type& parm); void reset(); // generating functions template<class URNG> result_type operator()(URNG& g); template<class URNG> result_type operator()(URNG& g, const param_type& parm); // property functions IntType t() const; double p() const; param_type param() const; void param(const param_type& parm); result_type min() const; result_type max() const; };
explicit binomial_distribution(IntType t = 1, double p = 0.5);
Requires: 0 ≤ p ≤ 1 and 0 ≤ t .
Effects: Constructs a binomial_distribution object; t and p correspond to the respective parameters of the distribution.
Returns: The value of the t parameter with which the object was constructed.
Returns: The value of the p parameter with which the object was constructed.