psi: Psi functions

Description Usage Arguments Details

Description

Psi functions

Usage

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fn.psi.huber(u, k = 1.345, deriv = 0)

fn.psi.bisquare(u, c = 4.685, deriv = 0)

fn.chi.prop2(u, k = 1.345, deriv = 0, b = 0.71016)

Arguments

u

numeric vector of evaluation points

k, c, b

tunning parameters for each objective function

deriv

0 or 1: returns psi(x) or psi'(x)

Details

see psi.huber/psi.bisquare for more details. Note the difference in the returned value for deriv=0 for this package. Functions re-written out of convenience for the development of brlm.


jrlewi/brlm documentation built on March 17, 2021, 1:10 a.m.