Displaying 1 result from an estimated 1 matches for "firdbhfec_sum".
2013 Apr 06
1
Plotting a curve for a Holling Type III Functional Response
Hey,
So I have a scatter plot and I am trying to plot a curve to fit the data
based on a Holling Type III functional response. My function is this:
nll2<-function(a,b) {
conefun<-(a*DBH^2)/(b^2+DBH^2)
nlls2<-dnbinom(x=cones ,size=DBH, mu=conefun,log=TRUE)
-sum(nlls)
}
and my plot is this:
plot (DBH,cones)
DBH is on the x-axis and cones is on the y-axis. How do I get the curve