upcv {robeth}

u' weight function for covariances

Description

See Marazzi A. (1993), p.325

Usage

upcv(s)

Arguments

s

A scalar input value

Value

The value of the u' function for s

References

Marazzi A. (1993) Algorithm, Routines, and S functions for Robust Statistics. Wadsworth & Brooks/cole, Pacific Grove, California. p.325