`scipy.stats._discrete_distns:poisson_gen`

source: build-install/usr/lib/python3.14/site-packages/scipy/stats/_discrete_distns.py:965

Signature

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

Members

_argcheck
_cdf
_logcdf
_logpmf
_logsf
_pmf
_ppf
_rvs
_sf
_shape_info
_stats

Summary

A Poisson discrete random variable.

Extended Summary

%(before_notes)s

Notes

The probability mass function for poisson is:

f (k) = exp (- μ) \frac{μ ^{k}}{k !}

for $k \geq 0$ .

poisson takes $μ \geq 0$ as shape parameter. When $μ = 0$ , the pmf method returns 1.0 at quantile $k = 0$ .

%(after_notes)s

%(example)s

Aliases

scipy.stats._discrete_distns.poisson_gen