From 12934520d7ec3218ce1505787b6066334a24a562 Mon Sep 17 00:00:00 2001 From: jranke Date: Tue, 30 Mar 2010 19:49:44 +0000 Subject: Initial import of the kinfit package developed from 2008-07 to 2010-03 at Harlan Laboratories Ltd (former RCC Ltd). Supports fitting of parent data with the usual FOCUS kinetic models. git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/kinfit/pkg/kinfit@2 edb9625f-4e0d-4859-8d74-9fd3b1da38cb --- man/DFOP.Rd | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 man/DFOP.Rd (limited to 'man/DFOP.Rd') diff --git a/man/DFOP.Rd b/man/DFOP.Rd new file mode 100644 index 0000000..129b3b1 --- /dev/null +++ b/man/DFOP.Rd @@ -0,0 +1,37 @@ +\name{DFOP} +\Rdversion{1.1} +\alias{DFOP} +\title{ +Dual First-Order in Parallel kinetics +} +\description{ + Function describing decline from a defined starting value using the sum + of two exponential decline functions. +} +\usage{ +DFOP(t, parent.0, k1, k2, g) +} +\arguments{ + \item{t}{ Time. } + \item{parent.0}{ Starting value for the response variable at time zero. } + \item{k1}{ First kinetic constant. } + \item{k2}{ Second kinetic constant. } + \item{g}{ Fraction of the starting value declining according to the + first kinetic constant. + } +} +\value{ + The value of the response variable at time \code{t}. +} +\references{ + FOCUS (2006) \dQuote{Guidance Document on Estimating Persistence and + Degradation Kinetics from Environmental Fate Studies on Pesticides in EU + Registration} Report of the FOCUS Work Group on Degradation Kinetics, + EC Document Reference Sanco/10058/2005 version 2.0, 434 pp, + \url{http://focus.jrc.ec.europa.eu/dk} +} +\author{ Johannes Ranke } +\examples{ + \dontrun{plot(function(x) DFOP(x, 100, 5, 0.5, 0.3), 0, 4, ylim=c(0,100))} +} +\keyword{ manip } -- cgit v1.2.1