Creates a data frame with ranked abundances of rad-class from a vector
of abundances or fitted model object.
Usage
rad(x)
Arguments
x
a numerical vector of abundances or an object of class
fitsad or fitrad.
Value
an object of rad-class, which is a data frame with two vectors:
rankinteger; abundance rank of each species (integer), from most abundant
(rank=1) to the least abundant (rank=length(rank))
abundnumeric; abundance of each species
References
Whittaker, R. H. 1965, Dominance and Diversity in Land Plant
Communities. Science, 147: 250--260.
See Also
rad-class for methods to create a rank-abundance
data frame; radpred to get a rad-class object of predicted abundances from a
theoretical distribution; fitsad-class and
fitrad-class objects, from which you can also get an
object of class rad; qqrad for quantile-quantile plots from a
rad-class object, and pprad for
percentile-percentile plots.