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sads (version 0.2.2)

Maximum Likelihood Models for Species Abundance Distributions

Description

Maximum likelihood tools to fit and compare models of species abundance distributions and of species rank-abundance distributions.

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Version

Install

install.packages('sads')

Monthly Downloads

1,333

Version

0.2.2

License

GPL-2

Issues

16

Pull Requests

0

Stars

23

Forks

4

Maintainer

Paulo I Prado

Last Published

July 11th, 2015

Functions in sads (0.2.2)

dmand

Zipf-Mandelbrodt distribution
octav-class

Class "octav" for frequencies in abundance octaves
dbs

MacArthur's Broken-stick distribution
dpower

Power discrete distribution
dgs

Geometric series distribution
rad-class

Class "rad" for rank-abundance data
octavpred-methods

Predicted frequencies of species in octaves
sads-package

Modeling Species Abundance Distributions
dvolkov

Neutral Biodiversity Theory distribution by Volkov et al.
ppsad and pprad methods

Percentile-percentile plots for species-abundance and rank-abundance models
bci

Tree species abundance in Barro Colorado Island Plot
okland

Abundances of land snail species in Norway
ICtab

Compute table of information criteria and auxiliary info
dpoilog

Poisson-lognormal distribution
updatesad

Updating of MLE fits by profiling
fitrad-class

Class "fitrad" for maximum likelihood fitting of species rank-abundance distributions
birds

Abundances of breeding birds in Quacker Run Valley, NY
qqsad and qqrad methods

Quantile-quantile plots for species-abundance and rank-abundance models
dls

Fisher's Log-series distribution
dpoig

Compound Poisson-gamma distribution
rad

Rank-abundance data frame
fitsad

ML fitting of species abundance distributions
radpred-methods

Predicted ranked abundance of species
dmzsm

Metacommunity zero-sum multinomial distribution
fitsad-class

Class "fitsad" for maximum likelihood fitting of species abundance distributions
dzipf

Zipf distribution
dpareto

Pareto distribution
plotprofmle-methods

Plot of log-likelihood profiles at original scale
octav

Frequencies of species in octaves
ARN82

Biomass of marine animals in colonizing experiments in Baltic Sea
dpoix

Compound Poisson-Exponential distribution
fitrad

ML fitting of species rank-abundance distributions
moths

Moths caught with light traps at Rothamsted 1933-1936
rsad

Poisson and negative binomial sampling of a species abundance distribution
dtrunc

Left-truncation of density, probability and quantile of distributions
pred.logser

Predicted number of species by Fisher's Logseries