dfrpar: Sets default parameters for regression estimates
Description
See Marazzi A. (1993), p.398 and p.406Usage
dfrpar(x, etype, upar = -1, psipar = -1)
References
Marazzi A. (1993) Algorithm, Routines, and S functions
for Robust Statistics. Wadsworth & Brooks/cole, Pacific Grove,
California. p.398 and p.406