[R] nonlinear regression with M estimation

From: Ruei-Che Liu <rl241_at_columbia.edu>
Date: Tue 06 Jul 2004 - 02:08:58 EST

Hi All,

   Could any one tells me if R or S has the capacity to fit nonlinear regression with Huber's M estimation? Any suggestion is appreciated. I was aware of 'rlm' in MASS library for robust linear regression and 'nls' for nonlinear least squares regression, but did not seem to be able to find robust non-linear regression function.

   Thanks and regards,

   Ray Liu



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