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untb (version 1.2-5)

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

181

Version

1.2-5

License

GPL

Maintainer

Robin Hankin

Last Published

September 11th, 2024

Functions in untb (1.2-5)

no.of.ind

Ecosystem diagnostics
logkda

Etienne's K(D,A)
phi

Hubbell's phi
preston

Preston diagram of an ecosystem
optimal.prob

Returns an estimate of the fundamental biodiversity number
extractor

Extract rows of a database in count form
etienne

Etienne's sampling formula
plot.count

Abundance curves
butterflies

abundance data for butterflies
print.preston

Print and plot objects of class Preston
copepod

Copepod data supplied by Phil Pugh
saunders

Dataset due to Saunders
sahfos

Biodiversity dataset provided by SAHFOS
rand.neutral

Random neutral ecosystem
summary.count

Summary methods for count and census objects
print.summary.count

Print method for summary objects
untb

Ecological drift simulation under the Unified Neutral Theory of Biodiversity
fisher

Various functionality to implement Fisher's logseries
expected.abundance

Expected abundances under the neutral model
+.count

Add two count objects
logS1

logarithms of Stirling numbers of the first kind
untb-package

Unified neutral theory of biodiversity
species.count

Ecosystem diagnostics for output of untb()
census

Construct, coerce, and test for a census object
count

Construct, coerce, and test for a count object
simpson

Simpson's diversity index
theta.prob

Posterior probabilities for theta
display.untb

Animation of neutral ecological drift