Learn R Programming

ordinalTables (version 1.0.0.3)

McCullagh_update_parameters: Update the parameters based on Newton-Raphson step.

Description

Update the parameters based on Newton-Raphson step.

Usage

McCullagh_update_parameters(update, step, psi, delta, alpha, c = 1)

Value

list containing new parameters psi: matrix of symmetry parameters delta; scalar or vector of asymmetry parameters alpha: vector of asymmetry parameters c: scaling coefficient to ensure pi sums to 1.0

Arguments

update

vector of update values

step

size of candidate step along direction of update

psi

vector of symmetry parameters

delta

scalar or vector of asymmetry parameters

alpha

vector of asymmetry parameters

c

normalization factor to make sum pf pi = 1.0. Default value is 1.0.