sads (version 0.6.3)

rad: Rank-abundance data frame

Description

Creates a data frame with ranked abundances of rad-class from a vector of abundances, histogram, or fitted model object.

Usage

rad(x)

Value

an object of rad-class, which is a data frame with two vectors:

rank

integer; abundance rank of each species (integer), from most abundant (rank=1) to the least abundant (rank=length(rank))

abund

numeric; abundance of each species

Arguments

x

a numerical vector of abundances or an histogram, or an object of class fitsad, fitrad or fitsadC.

Author

Paulo I. Prado and Murilo Dantas Miranda.

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 , fitsadC-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.

Examples

## rank-abundance plot
plot(rad(okland))