Jorge,
If you'll send me details of the error messages, I'll see what I can do to
help. I notice in your posting there is a missing ')' in the next to last line
of model, but no error message; I don't suppose that could have anything to do
with it?
(send the details to my work email:
Just a followup. I suppose you meant something like this:
library(odesolve)
y - c(10, 20, 10, 20)
parms - matrix(c(0.05, 0.1, 0.2, 0.05, 0.1, 0.2), nc=3, byrow=T)
model - function(times, y, parms) {
P - y[1:2]
V - y[3:4]
beta - parms[,1]
mu - parms[,2]
r - parms[,3]
dPdT -
Hello there,
Suppose you want to solve the following system of ODE's (a simple
Lotka-Volterra predator prey model)
dP/dt = beta*P*V - mu*P
dV/dt = r*V - beta*P*V
where P and V are the numbers of predators and prey. Now, this is
easy to do, but suppose you have a system of equations like
