drfit

The R library drfit is routinely used in our Department for analysing our cytotoxicity, enzyme inhibition and some ecotoxicity data, e.g. from tests with Lemna minor, Vibrio fischeri or growth inhibition assays with plants. The package is hosted on CRAN since July 21, 2004, and is being actively maintained.

Introductory article on the package:		Rnews_2006-3.pdf (3.8 MB)
Windows binary of Version 0.05-92:		drfit_0.05-92.zip
Source package of Version 0.05-92:		drfit_0.05-92.tar.gz
CRAN package page:		drfit
Subversion repository:		http://kriemhild.uft.uni-bremen.de/svn/drfit
Browse source code:		http://kriemhild.uft.uni-bremen.de/viewcvs/?root=drfit

Description:

Package: drfit
Version: 0.05-92
Date: 2007-11-23
Title: Dose-response data evaluation
Author: Johannes Ranke 
Maintainer: Johannes Ranke 
Depends: R (>= 2.1.0),stats,MASS,RODBC
Description: drfit provides basic and easy-to-use functions for fitting
	dose-response curves to dose-response data, calculating some
	(eco)toxicological parameters and plotting the results. Functions that are
	fitted are the cumulative density function of the lognormal distribution
	(probit fit), of the logistic distribution (logit fit), of the weibull
	distribution (weibull fit) and a linear-logistic model ("linlogit" fit),
	derived from the latter, which is used to describe data showing stimulation
	at low doses (hormesis). In addition, functions checking, plotting and
	retrieving dose-response data retrieved from a database accessed via RODBC
	are included.
Encoding: latin1
License: GPL (>= 2)
URL: http://www.r-project.org, 
	http://www.uft.uni-bremen.de/chemie/ranke?page=drfit,
	http://kriemhild.uft.uni-bremen.de/viewcvs/?root=drfit