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

untb (version 1.6-9)

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. Now includes functionality provided by Francois Munoz and Andrea Manica.

Copy Link

Version

Install

install.packages('untb')

Monthly Downloads

363

Version

1.6-9

License

GPL

Maintainer

Robin K S Hankin

Last Published

December 27th, 2011

Functions in untb (1.6-9)

bci

Barro Colorado Island (BCI) dataset
count

Construct, coerce, and test for a count object
logS1

logarithms of Stirling numbers of the first kind
theta.prob

Posterior probabilities for theta
butterflies

abundance data for butterflies
summary.count

Summary methods for count and census objects
optimal.params.gst

Estimation of local immigration using GST(k) statistics
fisher

Various functionality to implement Fisher's logseries
logkda

Etienne's K(D,A)
sahfos

Biodiversity dataset provided by SAHFOS
no.of.ind

Ecosystem diagnostics
etienne

Etienne's sampling formula
isolate

Randomly select a subset of an ecosystem
untb

Ecological drift simulation under the Unified Neutral Theory of Biodiversity
volkov

Expected frequency of species
zsm

Zero sum multinomial distribution as derived by McKane
optimal.params.sloss

Estimation of neutral community parameters using a two-stage maximum-likelihood procedure
print.preston

Print and plot objects of class Preston
display.untb

Animation of neutral ecological drift
species.count

Ecosystem diagnostics for output of untb()
untb-package

Unified neutral theory of biodiversity
copepod

Copepod data supplied by Phil Pugh
spitale

Counts of diatom species in springs of the Adamello-Brenta Nature Park
expected.abundance

Expected abundances under the neutral model
extractor

Extract rows of a database in count form
alonso

Various functions from Alonso and McKane 2004
caruso

Dataset due to Caruso
ghats

Tree counts in 1-ha plots from the Western Ghats mountains (South India)
plot.count

Abundance curves
print.summary.count

Print method for summary objects
optimal.prob

Returns an estimate of the fundamental biodiversity number
phi

Hubbell's phi
rand.neutral

Random neutral ecosystem
census

Construct, coerce, and test for a census object
preston

Preston diagram of an ecosystem
+.count

Add two count objects
saunders

Dataset due to Saunders
vallade

Various functions from Vallade and Houchmandzadeh
simpson

Simpson's diversity index