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covmod
2010 May 14
0
Error in eco-model
...a model for tree animal species. I was trying to get the model in R
but there are some errors. Since i am not so experienced with R i can't find
the bugs in my script.
I hope if there is someone who can help me handle this problem.
Greetz
Roel
This is the script i wrote:
library(odesolve)
LotVmod <- function (Time, State, Pars) {
with(as.list(c(State, Pars)), {
dx = x*(alpha - beta*y)
dy = -y*(gamma - delta*z)
dz = z*( Iota ? kappa*y)
return(list(c(dx, dy, dz)))
})
}
Pars <- c(alpha = .405, beta = .81, gamma = 1.5, delta = .125, Iota = 0.35,
kappa = 0.75)
State <- c(x =...