species.count
From untb v1.7-2
by Robin K S Hankin
Ecosystem diagnostics for output of untb()
Provides ecosystem diagnostics of species count datasets (species
counts and species tables), useful for the output of untb()
- Keywords
- math
Usage
species.count(x)
species.table(x)
Arguments
- x
- An integer matrix whose rows are integers representing the individuals' species
Details
These functions takes a matrix argument, which is interpreted as the
output of untb(...,keep=TRUE)
.
Function species.count()
returns the total number of species
present in each row (ie at each timestep).
Function species.table()
returns a matrix $M$ where
M[i,j]
column of the matrix is the abundance of species $j$
at time i
.
See Also
Examples
a <- untb(start=rep(1,50), prob=0.01, gens=2000, keep=TRUE)
plot(species.count(a),type="b")
matplot(species.table(a),type="l",lty=1)
jj <- a[2000,]
print(jj)
as.count(jj)
Community examples
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