rho.tukey: Tukey's beweight loss function and its derivatives

View source: R/mr_fun_general.R

rho.tukeyR Documentation

Tukey's beweight loss function and its derivatives

Description

Tukey's beweight loss function and its derivatives

Usage

rho.tukey(r, k = 4.685, deriv = 0)

Arguments

r

Function value

k

Tuning parameter, default value is 4.685

deriv

The derivative function to calculate. 0 is the Tukey's loss function, 1 is for the first derivative and 2 for the second derivative function

Value

The value of the corresponding function at r


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