phi
From untb v1.3-3
by Robin S. Hankin
Hubbell's phi
Hubbell's phi: counts of species abundances
- Keywords
- math
Usage
phi(x,addnames=TRUE)
Arguments
- x
- Ecosystem vector; is coerced to class
count
- addnames
- Boolean with default
TRUE
meaning to set the name of the $i$th element to the species with abundance $i$ if unique. Set toFALSE
to suppress this, which is useful if the species names are long
Details
Function phi()
coerces its argument to a count
object and
by default returns a named vector whose $i$th element is the
number of species with $i$ individuals. The name of the
$i$th element is the species with abundance $i$ if unique
and empty otherwise. Function phi()
is used by
theta.prob()
.
Note
The code for setting the names is a dog's breakfast
References
S. P. Hubbell 2001.
See Also
Examples
data(butterflies)
phi(butterflies,add=FALSE)
Community examples
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