Re: [R] Nonlinear robust regression

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From: roger koenker (rkoenker@uiuc.edu)
Date: Wed 19 May 2004 - 00:45:01 EST


Message-id: <F1681D8A-A8D9-11D8-9A45-000A95A7E3AA@uiuc.edu>

The package nlrq does nonlinear l1 regression. This isn't robust in the
design directions, but is in the response direction.

url: www.econ.uiuc.edu/~roger Roger Koenker
email rkoenker@uiuc.edu Department of Economics
vox: 217-333-4558 University of Illinois
fax: 217-244-6678 Champaign, IL 61820

On May 18, 2004, at 8:49 AM, Eva Gelnarova wrote:

> Hello,
> I would like to make a nonlinar fit (exactly the exponencial fit)
> to the data. But my data set is not
> ideal at all, so any robust method (such as LTS) would be bettre then
> LS. Could you advice me, please, if there is any R package or R
> function
> which provides the nonlinear robust regression?
> Thank you
> Eva Gelnarova
>
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