Hockey-Stick kinetics
Usage
HS.solution(t, parent.0, k1, k2, tb)
Arguments
- t
- Time.
- parent.0
- Starting value for the response variable at time zero.
- k1
- First kinetic constant.
- k2
- Second kinetic constant.
- tb
- Break point. Before this time, exponential decline according
to
k1is calculated, after this time, exponential decline proceeds according tok2.
Description
Function describing two exponential decline functions with a break point between them.
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://focus.jrc.ec.europa.eu/dk
Examples
plot(function(x) HS.solution(x, 100, 2, 0.3, 0.5), 0, 2, ylim=c(0,100))
