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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 diagram of an ecosystem

Animation of neutral ecological drift

Various functions from Alonso and McKane 2004

Abundance curves

expected.abundance

Expected abundances under the neutral model

Unified neutral theory of biodiversity

Posterior probabilities for theta

Biodiversity dataset provided by SAHFOS

Ecological drift simulation under the Unified Neutral Theory of Biodiversity

Expected frequency of species

Extract rows of a database in count form

logarithms of Stirling numbers of the first kind

Dataset due to Saunders

Barro Colorado Island (BCI) dataset

Construct, coerce, and test for a count object

abundance data for butterflies

Returns an estimate of the fundamental biodiversity number

Randomly select a subset of an ecosystem

Ecosystem diagnostics for output of untb()

Random neutral ecosystem

Various functionality to implement Fisher's logseries

Etienne's K(D,A)

Print and plot objects of class Preston

Simpson's diversity index

Various functions from Vallade and Houchmandzadeh

Zero sum multinomial distribution as derived by McKane

Add two count objects

Copepod data supplied by Phil Pugh

print.summary.count

Print method for summary objects

Etienne's sampling formula

Construct, coerce, and test for a census object

Summary methods for count and census objects

Ecosystem diagnostics