`scipy.stats._continuous_distns:dgamma_gen`

source: /scipy/stats/_continuous_distns.py :1757

Signature

   class     dgamma_gen (    momtype    =  1   ,    a    =  None   ,    b    =  None   ,    xtol    =  1e-14   ,    badvalue    =  None   ,    name    =  None   ,    longname    =  None   ,    shapes    =  None   ,    seed    =  None     )

Members

_cdf
_entropy
_isf
_logpdf
_pdf
_ppf
_rvs
_sf
_shape_info
_stats

Summary

A double gamma continuous random variable.

Extended Summary

The double gamma distribution is also known as the reflected gamma distribution ^[1].

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Notes

The probability density function for dgamma is:

f (x, a) = \frac{1}{2Γ ( a )} ∣ x ∣^{a - 1} exp (- ∣ x ∣)

for a real number $x$ and $a > 0$ . $Γ$ is the gamma function (scipy.special.gamma).

dgamma takes a as a shape parameter for $a$ .

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Aliases

scipy.stats._continuous_distns.dgamma_gen