bundles / scipy 2.0.0.dev0+git20260907.41eeb59 / scipy / stats / _discrete_distns / betanbinom_gen

class

`scipy.stats._discrete_distns:betanbinom_gen`

source: build-install/usr/lib/python3.14/site-packages/scipy/stats/_discrete_distns.py:401

Signature

class betanbinom_gen(a = 0, b = inf, name = None, badvalue = None, moment_tol = 1e-08, values = None, inc = 1, longname = None, shapes = None, seed = None)

Members

Summary

A beta-negative-binomial discrete random variable.

Extended Summary

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Notes

The beta-negative-binomial distribution is a negative binomial distribution with a probability of success p that follows a beta distribution.

The probability mass function for betanbinom is:

f (k) = (k n + k - 1) \frac{B ( a + n , b + k )}{B ( a , b )}

for $k \geq 0$ , $n \geq 0$ , $a > 0$ , $b > 0$ , where $B (a, b)$ is the beta function.

betanbinom takes $n$ , $a$ , and $b$ as shape parameters.

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See also

betabinom: Beta binomial distribution

Aliases

scipy.stats._discrete_distns.betanbinom_gen