rrcov (version 0.4-01)

CovControlMest: Constructor function for objects of class "CovControlMest"

Description

This function will create a control object CovControlMest containing the control parameters for CovMest

Usage

CovControlMest(r = 0.45, arp = 0.05, eps = 0.001, maxiter = 120)

Arguments

r

a numeric value specifying the required breakdown point. Allowed values are between (n - p)/(2 * n) and 1 and the default is 0.45

arp

a numeric value specifying the asympthotic rejection point, i.e. the fraction of points receiving zero weight (see Rocke (1996)). Default is 0.05

eps

a numeric value specifying the relative precision of the solution of the M-estimate. Defaults to 1e-3

maxiter

maximum number of iterations allowed in the computation of the M-estimate. Defaults to 120

Value

• A CovControlMest object

concept

High breakdown point

Examples

## the following two statements are equivalent
    ctrl1 <- new("CovControlMest", r=0.4)
    ctrl2 <- CovControlMest(r=0.4)

    data(hbk)
    CovMest(hbk, control=ctrl1)