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statsmodels.genmod.families.links.Log¶

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

The log transform

Notes

call and derivative call a private method _clean to trim the data by machine epsilon so that p is in (0,1). log is an alias of Log.

Methods

__call__(p, **extra) Log transform link function
deriv(p) Derivative of log transform link function
deriv2(p) Second derivative of the log transform link function
inverse(z) Inverse of log transform link function
inverse_deriv(z) Derivative of the inverse of the log transform link function
inverse_deriv2(z) Second derivative of the inverse link function g^(-1)(z).

Methods

deriv(p) Derivative of log transform link function
deriv2(p) Second derivative of the log transform link function
inverse(z) Inverse of log transform link function
inverse_deriv(z) Derivative of the inverse of the log transform link function
inverse_deriv2(z) Second derivative of the inverse link function g^(-1)(z).

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