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sads (version 0.2.3)

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

0.2.3

License

GPL-2

Issues

16

Pull Requests

0

Stars

23

Forks

4

Maintainer

Paulo I Prado

Last Published

September 24th, 2015

Functions in sads (0.2.3)

dtrunc

Left-truncation of density, probability and quantile of distributions
moths

Moths caught with light traps at Rothamsted 1933-1936
dgs

Geometric series distribution
octav-class

Class "octav" for frequencies in abundance octaves
qqsad and qqrad methods

Quantile-quantile plots for species-abundance and rank-abundance models
ARN82

Biomass of marine animals in colonizing experiments in Baltic Sea
birds

Abundances of breeding birds in Quacker Run Valley, NY
updatesad

Updating of MLE fits by profiling
fitsad

ML fitting of species abundance distributions
dpoilog

Poisson-lognormal distribution
dpower

Power discrete distribution
octav

Frequencies of species in octaves
okland

Abundances of land snail species in Norway
dpoig

Compound Poisson-gamma distribution
plotprofmle-methods

Plot of log-likelihood profiles at original scale
dzipf

Zipf distribution
dvolkov

Neutral Biodiversity Theory distribution by Volkov et al.
fitrad

ML fitting of species rank-abundance distributions
octavpred-methods

Predicted frequencies of species in octaves
bci

Tree species abundance in Barro Colorado Island Plot
rsad

Poisson and negative binomial sampling of a species abundance distribution
dpareto

Pareto distribution
dls

Fisher's Log-series distribution
rad-class

Class "rad" for rank-abundance data
pred.logser

Predicted number of species by Fisher's Logseries
dmzsm

Metacommunity zero-sum multinomial distribution
ICtab

Compute table of information criteria and auxiliary info
radpred-methods

Predicted ranked abundance of species
dpoix

Compound Poisson-Exponential distribution
rad

Rank-abundance data frame
fitsad-class

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

Zipf-Mandelbrodt distribution
fitrad-class

Class "fitrad" for maximum likelihood fitting of species rank-abundance distributions
ppsad and pprad methods

Percentile-percentile plots for species-abundance and rank-abundance models
sads-package

Modeling Species Abundance Distributions
dbs

MacArthur's Broken-stick distribution