statsmodels.genmod.families.links.Cauchy.deriv¶

Cauchy.deriv(p)¶

Derivative of CDF link

Parameters:¶

parray_like

mean parameters

Returns:¶

g'(p)ndarray

The derivative of CDF transform at p

Notes

g'(p) = 1./ dbn.pdf(dbn.ppf(p))