bundles / scipy 1.18.0 / scipy / stats / _discrete_distns / betabinom_gen

class

`scipy.stats._discrete_distns:betabinom_gen`

source: /scipy/stats/_discrete_distns.py:193

Signature

class betabinom_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-binomial discrete random variable.

Extended Summary

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Notes

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

The probability mass function for betabinom is:

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

for $k \in {0, 1, \dots, n}$ , $n \geq 0$ , $a > 0$ , $b > 0$ , where $B (a, b)$ is the beta function.

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

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See also

beta
binom

Aliases

scipy.stats._discrete_distns.betabinom_gen