untb v1.6-3
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ecological drift under the UNTB
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.
Functions in untb
| Name | Description | |
| optimal.prob | Returns an estimate of the fundamental biodiversity number | |
| volkov | Expected frequency of species | |
| bci | Barro Colorado Island (BCI) dataset | |
| butterflies | abundance data for butterflies | |
| census | Construct, coerce, and test for a census object | |
| zsm | Zero sum multinomial distribution as derived by McKane | |
| sahfos | Biodiversity dataset provided by SAHFOS | |
| optimal.params.sloss | Estimation of neutral community parameters using a two-stage maximum-likelihood procedure | |
| saunders | Dataset due to Saunders | |
| isolate | Randomly select a subset of an ecosystem | |
| ghats | Tree counts in 1-ha plots from the Western Ghats mountains (South India) | |
| theta.prob | Posterior probabilities for theta | |
| species.count | Ecosystem diagnostics for output of untb() | |
| simpson | Simpson's diversity index | |
| phi | Hubbell's phi | |
| extractor | Extract rows of a database in count form | |
| vallade | Various functions from Vallade and Houchmandzadeh | |
| display.untb | Animation of neutral ecological drift | |
| optimal.params.gst | Estimation of local immigration using GST(k) statistics | |
| print.preston | Print and plot objects of class Preston | |
| etienne | Etienne's sampling formula | |
| count | Construct, coerce, and test for a count object | |
| summary.count | Summary methods for count and census objects | |
| untb | Ecological drift simulation under the Unified Neutral Theory of Biodiversity | |
| no.of.ind | Ecosystem diagnostics | |
| plot.count | Abundance curves | |
| logS1 | logarithms of Stirling numbers of the first kind | |
| caruso | Dataset due to Caruso | |
| preston | Preston diagram of an ecosystem | |
| print.summary.count | Print method for summary objects | |
| logkda | Etienne's K(D,A) | |
| alonso | Various functions from Alonso and McKane 2004 | |
| copepod | Copepod data supplied by Phil Pugh | |
| expected.abundance | Expected abundances under the neutral model | |
| fisher | Various functionality to implement Fisher's logseries | |
| rand.neutral | Random neutral ecosystem | |
| untb-package | Unified neutral theory of biodiversity | |
| +.count | Add two count objects | |
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Details
| Type | Package |
| Date | 2009-26-02 |
| SystemRequirements | PARI/GP >= 2.3.0 [strongly recommended for logkda()] |
| License | GPL |
| URL | http://www.r-project.org |
| Packaged | 2010-03-16 20:50:19 UTC; rksh |
| Repository | CRAN |
| Date/Publication | 2010-04-03 07:59:59 |
| depends | Brobdingnag , partitions , polynom , vegan |
| Contributors | Robin S. Hankin |
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