untb v1.2-15
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by Robin Hankin
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.
Functions in untb
| Name | Description | |
| fisher | Various functionality to implement Fisher's logseries | |
| copepod | Copepod data supplied by Phil Pugh | |
| no.of.ind | Ecosystem diagnostics | |
| census | Construct, coerce, and test for a census object | |
| +.count | Add two count objects | |
| rand.neutral | Random neutral ecosystem | |
| display.untb | Animation of neutral ecological drift | |
| simpson | Simpson's diversity index | |
| untb | Ecological drift simulation under the Unified Neutral Theory of Biodiversity | |
| saunders | Dataset due to Saunders | |
| etienne | Etienne's sampling formula | |
| print.preston | Print and plot objects of class Preston | |
| logkda | Etienne's K(D,A) | |
| butterflies | abundance data for butterflies | |
| alonso | Various functions from Alonso and McKane 2004 | |
| plot.count | Abundance curves | |
| print.summary.count | Print method for summary objects | |
| logS1 | logarithms of Stirling numbers of the first kind | |
| vallade | Various functions from Vallade and Houchmandzadeh | |
| preston | Preston diagram of an ecosystem | |
| expected.abundance | Expected abundances under the neutral model | |
| isolate | Randomly select a subset of an ecosystem | |
| theta.prob | Posterior probabilities for theta | |
| untb-package | Unified neutral theory of biodiversity | |
| summary.count | Summary methods for count and census objects | |
| extractor | Extract rows of a database in count form | |
| sahfos | Biodiversity dataset provided by SAHFOS | |
| phi | Hubbell's phi | |
| volkov | Expected frequency of species | |
| count | Construct, coerce, and test for a count object | |
| optimal.prob | Returns an estimate of the fundamental biodiversity number | |
| species.count | Ecosystem diagnostics for output of untb() | |
| zsm | Zero sum multinomial distribution as derived by McKane | |
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Details
| Type | Package |
| Date | 2005-10-26 |
| SystemRequirements | PARI/GP >= 2.3.0 [strongly recommended for logkda()] |
| License | GPL |
| Packaged | Thu May 10 10:00:05 2007; rksh |
| depends | Brobdingnag , partitions |
| Contributors | Robin S. Hankin |
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