Description: drfit provides basic and easy-to-use functions for fitting
dose-response curves to dose-response data, calculating some
fitted are the cumulative densitiy 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
Packaged: Thu Apr  6 11:35:20 2006; ranke

Packaged: Sat Apr 22 00:02:30 2006; ranke

Packaged: Wed Apr 26 17:12:45 2006; ranke

Packaged: Fri Apr 28 16:08:13 2006; ranke

fitted are the cumulative density function of the lognormal distribution
Packaged: Mon May  8 19:38:43 2006; ranke

Packaged: Mon May 22 20:44:15 2006; ranke

Packaged: Mon Aug 28 17:24:19 2006; ranke

Packaged: Thu Mar 29 22:59:21 2007; ranke

at low doses (hormesis). In addition, functions checking, plotting and
retrieving dose-response data retrieved from a database accessed via RODBC
Packaged: Mon Oct  1 21:18:15 2007; ranke

Packaged: Fri Nov 23 17:35:50 2007; ranke

(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.

Authors@R: c(person("Johannes", "Ranke", role = c("aut", "cre"),
are included. As an alternative to the original fitting methods, the
algorithms from the drc package can be used.

Description: A somewhat outdated package of basic and easy-to-use functions for
fitting dose-response curves to continuous dose-response data, calculating some
(eco)toxicological parameters and plotting the results. Please consider using
the more powerful and actively developed 'drc' package.  Functions that are
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.
As an alternative to the original fitting methods, the algorithms from the drc