d2phideta2 {bbreg}R Documentation

d2phideta2

Description

Function to obtain the second derivatives of the precision parameter with respect to the linear predictor.

Usage

d2phideta2(link.precision, phi)

Arguments

link.precision

a string containing the link function the precision parameter. The possible link functions for the precision parameter are "identity", "log", "sqrt", "inverse".

phi

precision parameter.

[Package bbreg version 2.0.2 Index]