BEQI2: Benthic Ecosystem Quality Index 2

Benthic Ecosystem Quality Index 2. This package facilitates the analysis of benthos data. It estimates several quality indices like the total abundance of species, species richness, Shannon index, AZTI Marine Biotic Index (AMBI), and the BEQI-2 index. The package includes two additional optional features that enhance data preprocessing: (1) genus to species conversion, i.e.,taxa counts at the taxonomic genus level can optionally be converted to the species level and (2) pooling: small samples are combined to bigger samples with a standardized size to (a) meet the data requirements of the AMBI, (b) generate comparable species richness values and (c) give a higher benthos signal to noise ratio.

Version: 1.0-1
Depends: R (≥ 3.0.2), methods, tcltk
Imports: knitr, markdown, RJSONIO, xtable, plyr, reshape2
Suggests: testthat
Published: 2014-06-10
Author: Willem van Loon [aut, cph], Dennis Walvoort [aut, cre]
Maintainer: Dennis Walvoort <dennis.Walvoort at>
License: GPL (≥ 3)
NeedsCompilation: no
Materials: NEWS
CRAN checks: BEQI2 results


Reference manual: BEQI2.pdf
Vignettes: BEQI2: An Introduction
BEQI2: Installation Guide
Package source: BEQI2_1.0-1.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
OS X Snow Leopard binaries: r-release: BEQI2_1.0-1.tgz, r-oldrel: BEQI2_1.0-1.tgz
OS X Mavericks binaries: r-release: BEQI2_1.0-1.tgz
Old sources: BEQI2 archive