Martin,
You can model conditional near extreme quantile functions of a univariate
response variable with the quantreg package. The following reference:
@article{CTS.99,
Author = {Cade, B.S. and Terrell, J.W. and Schroeder, R.L.},
Title = { Estimating effects of limiting factors with regression
quantiles},
Journal = {Ecology},
Volume = {80},
Pages = {311-323},
Year = 1999
}
describes some ecological applications.
url: http://www.econ.uiuc.edu Roger Koenker
email roger at ysidro.econ.uiuc.edu Department of Economics
vox: 217-333-4558 University of Illinois
fax: 217-244-6678 Champaign, IL 61820
On Wed, 17 Apr 2002, Martin Biuw wrote:
> Hello,
>
> Does anyone know if there is an R-package that includes stochastic frontier
> regression models?
>
> Cheers,
>
> Martin
>
> Martin Biuw
> SEA MAMMAL RESEARCH UNIT
> Gatty Marine Laboratory
> School of Environmental and Evolutionary Biology
> University of St Andrews
> Fife, Scotland KY16 8LB
> UK
> phone +44 (0)1334 462630
> fax + 44 (0)1334 462632
> http://www.smru.st-and.ac.uk
>
>
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