Negative Binomial Distribution

Distributions associated with the Negative Binomial Equation of size n:

dnbinom(k, n, q) Returns the probability density for value k.

pnbinom(k, n, q) Returns the cumulative probability distribution for value k.

qnbinom(p, n, q) Returns the inverse cumulative probability distribution for probability p.

rnbinom(m, n, p) Returns a vector of m random numbers having the negative binomial distribution.

Arguments:

• n and k are integers, with n > 0, and k ≥ 0. To allow integration and other operations over these arguments, values outside of the stated range are allowed, but they produce a 0 result.
• q is a real probability, 0 < q ≤ 1.
• p is an real probability between 0 and 1.
• m is an integer greater than 0.

Notes:

• For definitions of the functions, and information on generating random numbers, see the Density and Distribution definitions.