sestck {riv}R Documentation

Tukey's biweight objective function (scale)

Description

Computes Tukey's biweight objective function (scale) corresponding with the Mahalanobis distances x.

Usage

sestck(x, start, c, k, tol)

Arguments

x a vector of data corresponds to the Mahalanobis distances.
start indicates the initial scale if different from zero, else scale will be estimated by the median.
c Tukey's biweight constant.
k the tuning constant for the multivariate S-estimator of location and covariance.
tol indicates the tolerance value of the iteration algorithm.

[Package riv version 1.0-1 Index]