kfedcb: Diagonal hat matrices D_M, E_M, D_S, and E_S
Description
See Marazzi A. (1993), p.159Usage
kfedcb(wgt, rs, expsi = psi, expsp = psp, sigma, itype = .dFvGet()$ite)
References
Marazzi A. (1993) Algorithm, Routines, and S functions
for Robust Statistics. Wadsworth & Brooks/cole, Pacific Grove,
California. p.15