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All functions

alonso.eqn6() alonso.eqn11() alonso.eqn12()
Various functions from Alonso and McKane 2004
bci BCI
Barro Colorado Island (BCI) dataset
butterflies
abundance data for butterflies
caruso
Dataset due to Caruso
census() as.census() is.census()
Construct, coerce, and test for a census object
copepod ostracod
Copepod data supplied by Phil Pugh
as.count() count() is.count()
Construct, coerce, and test for a count object
display.untb()
Animation of neutral ecological drift
etienne() optimal.params()
Etienne's sampling formula
expected.abundance()
Expected abundances under the neutral model
extractor()
Extract rows of a database in count form
fishers.alpha() fisher.ecosystem()
Various functionality to implement Fisher's logseries
ghats
Tree counts in 1-ha plots from the Western Ghats mountains (South India)
isolate()
Randomly select a subset of an ecosystem
logS1
logarithms of Stirling numbers of the first kind
logkda.R() logkda.a11() logkda.pari() logkda.polyn() logkda() logkda_pari_unix() logkda_pari_windows()
Etienne's K(D,A)
no.of.ind() no.of.spp() no.of.singletons() no.of.extinct() maximal.abundance() singletons() extinct() extant()
Ecosystem diagnostics
optimal.params.gst() GST.k() I.k()
Estimation of local immigration using GST(k) statistics
optimal.params.sloss()
Estimation of neutral community parameters using a two-stage maximum-likelihood procedure
optimal.prob() optimal.theta()
Returns an estimate of the fundamental biodiversity number
phi() unphi()
Hubbell's phi
plot(<count>) plot(<census>)
Abundance curves
`+`(<count>) `+`(<census>)
Add two count objects
preston()
Preston diagram of an ecosystem
print(<preston>) plot(<preston>)
Print and plot objects of class Preston
print(<summary.count>)
Print method for summary objects
rand.neutral()
Random neutral ecosystem
sahfos
Biodiversity dataset provided by SAHFOS
saunders
Dataset due to Saunders
simpson()
Simpson's diversity index
species.count() species.table()
Ecosystem diagnostics for output of untb()
spitale
Counts of diatom species in springs of the Adamello-Brenta Nature Park
summary(<count>) summary(<census>)
Summary methods for count and census objects
theta.prob() theta.likelihood()
Posterior probabilities for theta
untb() select() select.mutate() select.immigrate()
Ecological drift simulation under the Unified Neutral Theory of Biodiversity
untb-package
Unified neutral theory of biodiversity
vallade.eqn5() vallade.eqn7() vallade.eqn12() vallade.eqn14() vallade.eqn16() vallade.eqn17()
Various functions from Vallade and Houchmandzadeh
volkov()
Expected frequency of species
zsm()
Zero sum multinomial distribution as derived by McKane