psi.tukey: Derivative of Tukey's bi-square loss function

Description Usage Arguments Value Author(s)

Description

Derivative of Tukey's bi-square loss function.

Usage

1
psi.tukey(r, k = 4.685)

Arguments

r

A real number.

k

Tuning constant.

Value

A real number.

Author(s)

Alejandra Martinez, Matias Salibian-Barrera


alemermartinez/RMI-GitHub documentation built on May 9, 2019, 2:21 a.m.