bftprime: First derivative of cobin cumulant (log partition) function

View source: R/varfunctions.R

bftprimeR Documentation

First derivative of cobin cumulant (log partition) function

Description

B'(x) = 1/(1-\exp(-x))-1/x. When g is canonical link of cobin, this is same as g^{-1}

Usage

bftprime(x)

cobitlinkinv(x)

Arguments

x

input vector

Value

B'(x) = 1/(1-\exp(-x))-1/x.


cobin documentation built on Sept. 2, 2025, 1:08 a.m.