[R] M-estimator R function question

[Rand Wilcox]

In the robust library of S+, it is possible to compute Rocke's
constrained M-estimator of scatter and location. Can't find anything
within R that does the same thing. Can someone tell me whether any package
exists for computing it?

Thanks.

	Rand Wilcox
        Professor
	Dept of Psychology
	University of Southern California
	Los Angeles, CA 90089-1061
        FAX: 213-746-9082