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Double First-Order in Parallel kinetics

Source: R/parent_solutions.R
DFOP.solution.Rd

Function describing decline from a defined starting value using the sum of two exponential decline functions.

Usage

DFOP.solution(t, parent_0, k1, k2, g)

Arguments

t

Time.

parent_0

Starting value for the response variable at time zero.

k1

First kinetic constant.

k2

Second kinetic constant.

g

Fraction of the starting value declining according to the first kinetic constant.

Value

The value of the response variable at time t.

References

FOCUS (2006) “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, http://esdac.jrc.ec.europa.eu/projects/degradation-kinetics FOCUS (2014) “Generic guidance for Estimating Persistence and Degradation Kinetics from Environmental Fate Studies on Pesticides in EU Registration” Report of the FOCUS Work Group on Degradation Kinetics, Version 1.1, 18 December 2014 http://esdac.jrc.ec.europa.eu/projects/degradation-kinetics

See also

Other parent solutions: FOMC.solution(), HS.solution(), IORE.solution(), SFO.solution(), SFORB.solution(), logistic.solution()

Examples


  plot(function(x) DFOP.solution(x, 100, 5, 0.5, 0.3), 0, 4, ylim = c(0,100))