Message-ID: <43FC3BC802000006002A3384@gwia.kvl.dk>
Date: 2006-02-22T09:22:20Z
From: Christian Ritz
Subject: How to get around heteroscedasticity with non-linear least squares in R?
Hi Quin,
the package 'drc' on CRAN deals with modelling dose-response curves.
Moreover it allows adjustment for heterogeneity by means of
transformation (Box-Cox transformation)
modelling the variance as a power of the mean.
See the package documentation for more features.
Christian