statsmodels.genmod.families.links.Power

class statsmodels.genmod.families.links.Power(power=1.0)[source]

The power transform

Parameters
powerfloat

The exponent of the power transform

Notes

Aliases of Power: inverse = Power(power=-1) sqrt = Power(power=.5) inverse_squared = Power(power=-2.) identity = Power(power=1.)

Methods

__call__(p)

Power transform link function

deriv(p)

Derivative of the power transform

deriv2(p)

Second derivative of the power transform

inverse(z)

Inverse of the power transform link function

inverse_deriv(z)

Derivative of the inverse of the power transform

inverse_deriv2(z)

Second derivative of the inverse of the power transform

Methods

deriv(p)

Derivative of the power transform

deriv2(p)

Second derivative of the power transform

inverse(z)

Inverse of the power transform link function

inverse_deriv(z)

Derivative of the inverse of the power transform

inverse_deriv2(z)

Second derivative of the inverse of the power transform