From 8bdb4cd437a9d4663e542f95869e8692aa38dadb Mon Sep 17 00:00:00 2001 From: Johannes Ranke Date: Thu, 7 May 2020 08:59:29 +0200 Subject: Static documentation rebuilt by pkgdown --- R/DFOP.solution.R | 27 --------------------------- 1 file changed, 27 deletions(-) delete mode 100644 R/DFOP.solution.R (limited to 'R/DFOP.solution.R') diff --git a/R/DFOP.solution.R b/R/DFOP.solution.R deleted file mode 100644 index 608e7e18..00000000 --- a/R/DFOP.solution.R +++ /dev/null @@ -1,27 +0,0 @@ -#' Double First-Order in Parallel kinetics -#' -#' Function describing decline from a defined starting value using the sum of -#' two exponential decline functions. -#' -#' @param t Time. -#' @param parent.0 Starting value for the response variable at time zero. -#' @param k1 First kinetic constant. -#' @param k2 Second kinetic constant. -#' @param g Fraction of the starting value declining according to the first -#' kinetic constant. -#' @return 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://esdac.jrc.ec.europa.eu/projects/degradation-kinetics} -#' @examples -#' -#' plot(function(x) DFOP.solution(x, 100, 5, 0.5, 0.3), 0, 4, ylim = c(0,100)) -#' -#' @export -DFOP.solution <- function(t, parent.0, k1, k2, g) -{ - parent = g * parent.0 * exp(-k1 * t) + - (1 - g) * parent.0 * exp(-k2 * t) -} -- cgit v1.2.3