See Marazzi A. (1993), p.405
dfcomn2(ipsi = -9, c = -1.345, h1 = -1.7, h2 = -3.4, h3 = -8.5,
xk = -1.548, d = -1.345, beta = -0.5, bet0 = -1, iucv = -1,
a2 = 0, b2 = -3, chk = -9, ckw = -2, bb = -1, bt = -1,
cw = -1, em = -1.345, cr = -2, vk = -1, np = -2, nu = -1,
v7 = -1, iwww = -1)See reference
Option parameter for the choice of \(\psi\). Set -4 <= ipsi <= 4
Parameter c of the Huber function
Parameter \(h1\) of the Hampel function
Parameter \(h2\) of the Hampel function
Parameter \(h3\) of the Hampel function
Parameter \(k\) of the rescaled Tukey biweight
See reference
Parameter \(\beta\) to make\(\sigma\) estimate asymptotically unbiased
Parameter \(\beta_0\) to make\(\sigma\) estimate asymptotically unbiased
Option parameter for the choice of u(s), u'(s), v(s), v'(s), w(s) or w'(s)
Parameter a^2 of Huber's mimimax u-function
Parameter b^2 of Huber's mimimax u-function
Parameter c of the Hampel-Krasker u-function
Parameter c of the Krasker-Welsch u-function
Parameter b of the Mallows-unstandard u-function
Option parameter for w(s) or w'(s)
Option parameter for w(s) or w'(s)
Parameter em for unstandard u-function
Parameter cr for unstandard u-function
Parameter vk for unstandard u-function
Parameter np for unstandard u-function
Parameter nu for unstandard u-function
Parameter v for unstandard u-function
Option parameter for the choice of \(\bar\omega\). Set 0 <= iwww <= 3
Marazzi A. (1993) Algorithm, Routines, and S functions for Robust Statistics. Wadsworth & Brooks/cole, Pacific Grove, California. p.405