species.count {untb} | R Documentation |
Provides ecosystem diagnostics of species count datasets (species
counts and species tables), useful for the output of untb()
species.count(x) species.table(x)
x |
An integer matrix whose rows are integers representing the individuals' species |
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
.
Robin K. S. Hankin
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)