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untb (version 1.3-0)

ecological drift under the UNTB

Description

A collection of utilities for biodiversity data. Includes the simulation of ecological drift under Hubbell's Unified Neutral Theory of Biodiversity, and the calculation of various diagnostics such as Preston curves.

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Version

Install

install.packages('untb')

Monthly Downloads

186

Version

1.3-0

License

GPL

Maintainer

Robin Hankin

Last Published

September 11th, 2024

Functions in untb (1.3-0)

preston

Preston diagram of an ecosystem
phi

Hubbell's phi
display.untb

Animation of neutral ecological drift
alonso

Various functions from Alonso and McKane 2004
plot.count

Abundance curves
expected.abundance

Expected abundances under the neutral model
untb-package

Unified neutral theory of biodiversity
theta.prob

Posterior probabilities for theta
sahfos

Biodiversity dataset provided by SAHFOS
untb

Ecological drift simulation under the Unified Neutral Theory of Biodiversity
volkov

Expected frequency of species
extractor

Extract rows of a database in count form
logS1

logarithms of Stirling numbers of the first kind
saunders

Dataset due to Saunders
bci

Barro Colorado Island (BCI) dataset
count

Construct, coerce, and test for a count object
butterflies

abundance data for butterflies
optimal.prob

Returns an estimate of the fundamental biodiversity number
isolate

Randomly select a subset of an ecosystem
species.count

Ecosystem diagnostics for output of untb()
rand.neutral

Random neutral ecosystem
fisher

Various functionality to implement Fisher's logseries
logkda

Etienne's K(D,A)
print.preston

Print and plot objects of class Preston
simpson

Simpson's diversity index
vallade

Various functions from Vallade and Houchmandzadeh
zsm

Zero sum multinomial distribution as derived by McKane
+.count

Add two count objects
copepod

Copepod data supplied by Phil Pugh
print.summary.count

Print method for summary objects
etienne

Etienne's sampling formula
census

Construct, coerce, and test for a census object
summary.count

Summary methods for count and census objects
no.of.ind

Ecosystem diagnostics