expected.abundance
From untb v1.3-3
by Robin 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 functioncount()
.
Note
Function is very slow even for moderate J.
References
S. P. Hubbell 2001.
See Also
Examples
expected.abundance(J=10,theta=3)
sum(expected.abundance(J=10,theta=3)) #should be 10
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