statsmodels.genmod.families.links.Cauchy¶

class statsmodels.genmod.families.links.Cauchy[source]¶

The Cauchy (standard Cauchy CDF) transform

Notes

g(p) = scipy.stats.cauchy.ppf(p)

cauchy is an alias of CDFLink with dbn=scipy.stats.cauchy

Methods

__call__(p)

CDF link function

Methods

deriv(p)	Derivative of CDF link
deriv2(p)	Second derivative of the Cauchy link function.
deriv2_numdiff(p)	Second derivative of the link function g''(p)
inverse(z)	The inverse of the CDF link
inverse_deriv(z)	Derivative of the inverse link function
inverse_deriv2(z)	Second derivative of the inverse link function g^(-1)(z).