Hi
I am fitting simulated data to a logistic model usin SSlogis as follow:
nls(
cove ~ SSlogis(year, Asym, xmid, scal),
data = dat,
trace = TRUE,
model = TRUE,
...
)
This works niocely, but now I have a situation where I have constant
harvesting, i.e.
where p is the population size, N the carrying capacity, k the growth rate
and a the constant harvest.
My question is, how can I fit this logistic growth with constant harvesting
to my data?
Thanks,
Raine
--
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology,
UCT), Dipl. Phys. (Germany)
Centre of Excellence for Invasion Biology
Natural Sciences Building
Office Suite 2039
Stellenbosch University
Main Campus, Merriman Avenue
Stellenbosch
South Africa
Cell: +27 - (0)83 9479 042
Fax: +27 - (0)86 516 2782
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email: rai...@krugs.de
Skype: RMkrug
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