`scipy.stats._discrete_distns:poisson_gen`

source: /scipy/stats/_discrete_distns.py :967

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
_logpmf
_pmf
_ppf
_rvs
_sf
_shape_info
_stats

Summary

A Poisson discrete random variable.

Extended Summary

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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 $k = 0$ .

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%(example)s

Aliases

scipy.stats._discrete_distns.poisson_gen