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untb (version 1.2-15)

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

1.2-15

License

GPL

Maintainer

Robin Hankin

Last Published

September 11th, 2024

Functions in untb (1.2-15)

Various functionality to implement Fisher's logseries

Copepod data supplied by Phil Pugh

Ecosystem diagnostics

Construct, coerce, and test for a census object

Add two count objects

Random neutral ecosystem

Animation of neutral ecological drift

Simpson's diversity index

Ecological drift simulation under the Unified Neutral Theory of Biodiversity

Dataset due to Saunders

Etienne's sampling formula

Print and plot objects of class Preston

Etienne's K(D,A)

abundance data for butterflies

Various functions from Alonso and McKane 2004

Abundance curves

print.summary.count

Print method for summary objects

logarithms of Stirling numbers of the first kind

Various functions from Vallade and Houchmandzadeh

Preston diagram of an ecosystem

expected.abundance

Expected abundances under the neutral model

Randomly select a subset of an ecosystem

Posterior probabilities for theta

Unified neutral theory of biodiversity

Summary methods for count and census objects

Extract rows of a database in count form

Biodiversity dataset provided by SAHFOS

Expected frequency of species

Construct, coerce, and test for a count object

Returns an estimate of the fundamental biodiversity number

Ecosystem diagnostics for output of untb()

Zero sum multinomial distribution as derived by McKane