statsmodels.genmod.families.links.inverse_squared.deriv2¶
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inverse_squared.
deriv2
(p)¶ Second derivative of the power transform
Parameters: p (array-like) – Mean parameters Returns: g’‘(p) – Second derivative of the power transform of p Return type: array Notes
g’‘(p) = power * (power - 1) * p`**(`power - 2)