[RsR] robust fitting using Lorentzian merit function

Hello,

I'm currently doing non-linear curve fitting with nls and robust fitting
(for subsequent outlier detection) using nlrob.

Does anyone know if there are any functions/packages available in R for
robust fitting using a Lorentzian merit function to minimize?

Many thanks and kind regards,

 

Bruno

 

 

Dr. Bruno Merk 
Boehringer Ingelheim Pharma GmbH & Co. KG
IT RDM Research