expected.abundance
From untb v1.7-2
by Robin K S Hankin
Expected abundances under the neutral model
Returns a vector of expected abundances of the i-th ranked species under the neutral model
- Keywords
- math
Usage
expected.abundance(J, theta)
Arguments
- J
- Size of the ecosystem
- theta
- Biodiversity parameter
Value
-
Returns an object of class
count
. Species names (capital
letters) are assigned by function count()
.
Note
Function is very slow even for moderate J.
References
S. P. Hubbell 2001. The Unified Neutral Theory of Biodiversity. Princeton University Press.
See Also
Examples
expected.abundance(J=10,theta=3)
sum(expected.abundance(J=10,theta=3)) #should be 10
Community examples
Looks like there are no examples yet.