Learn R Programming

⚠️There's a newer version (1.7-7-1) of this package.Take me there.

untb (version 1.3-3)

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.

Copy Link

Version

Install

install.packages('untb')

Monthly Downloads

181

Version

1.3-3

License

GPL

Maintainer

Robin S. Hankin

Last Published

September 11th, 2024

Functions in untb (1.3-3)

Returns an estimate of the fundamental biodiversity number

logarithms of Stirling numbers of the first kind

Etienne's sampling formula

Random neutral ecosystem

Expected frequency of species

Biodiversity dataset provided by SAHFOS

Simpson's diversity index

Extract rows of a database in count form

Ecosystem diagnostics for output of untb()

Construct, coerce, and test for a census object

print.summary.count

Print method for summary objects

Etienne's K(D,A)

Various functionality to implement Fisher's logseries

expected.abundance

Expected abundances under the neutral model

Print and plot objects of class Preston

Summary methods for count and census objects

Various functions from Vallade and Houchmandzadeh

Ecological drift simulation under the Unified Neutral Theory of Biodiversity

Unified neutral theory of biodiversity

Preston diagram of an ecosystem

Zero sum multinomial distribution as derived by McKane

Various functions from Alonso and McKane 2004

Ecosystem diagnostics

Dataset due to Saunders

Copepod data supplied by Phil Pugh

Randomly select a subset of an ecosystem

Add two count objects

Abundance curves

abundance data for butterflies

Barro Colorado Island (BCI) dataset

Construct, coerce, and test for a count object

Posterior probabilities for theta

Animation of neutral ecological drift