DESCRIPTION

Package: vegetarian
Type: Package
Title: Jost Diversity Measures for Community Data
Version: 1.2
Date: 2009-07-20
Author: Noah Charney, Sydne Record
Maintainer: Noah Charney <noah@alumni.amherst.edu>
Description: This package computes diversity for community data sets
        using the methods outlined by Jost (2006, 2007). While there
        are differing opinions on the ideal way to calculate diversity
        (e.g. Magurran 2004), this method offers the advantage of
        providing diversity numbers equivalents, independent alpha and
        beta diversities, and the ability to incorporate 'order' (q) as
        a continuous measure of the importance of rare species in the
        metrics. The functions provided in this package largely
        correspond with the equations offered by Jost in the cited
        papers. The package computes alpha diversities, beta
        diversities, gamma diversities, and similarity indices.
        Confidence intervals for diversity measures are calculated
        using a bootstrap method described by Chao et al. (2008).  For
        datasets with many samples (sites, plots), sim.table creates
        tables of all pairwise comparisons possible, and for grouped
        samples sim.groups calculates pairwise combinations of within-
        and between-group comparisons.
License: GPL-2
LazyLoad: yes
Depends: stats
Packaged: 2012-10-29 08:59:58 UTC; ripley
Repository: CRAN
Date/Publication: 2012-10-29 08:59:58