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Signature Description Parameters 
template<typename T>
std::vector<T>
gen_poisson_dist(std::size_t n, const RandGenParams<T> &params = { });
Produces random non-negative integer values i, distributed according to
discrete probability function:
                -u     i
               e     u
    P(i|u) = ------------
                  i!
It returns the vector of results
Optional parameters to set:
mean, seed 		T: Type can only be [unsigned] char, [unsigned] short, [unsigned] int, [unsigned] long int, or [unsigned] long long int
n: Number of numerics to generate
params: List of all applicable parameters, see DataFrameTypes.h

C++ DataFrame