untb v1.2-14
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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 | |
| isolate | Randomly select a subset of an ecosystem | |
| etienne | Etienne's sampling formula | |
| logkda | Etienne's K(D,A) | |
| census | Construct, coerce, and test for a census object | |
| display.untb | Animation of neutral ecological drift | |
| extractor | Extract rows of a database in count form | |
| species.count | Ecosystem diagnostics for output of untb() | |
| fisher | Various functionality to implement Fisher's logseries | |
| summary.count | Summary methods for count and census objects | |
| sahfos | Biodiversity dataset provided by SAHFOS | |
| plot.count | Abundance curves | |
| volkov | Expected frequency of species | |
| preston | Preston diagram of an ecosystem | |
| rand.neutral | Random neutral ecosystem | |
| untb-package | Unified neutral theory of biodiversity | |
| simpson | Simpson's diversity index | |
| vallade | Various functions from Vallade and Houchmandzadeh | |
| logS1 | logarithms of Stirling numbers of the first kind | |
| print.preston | Print and plot objects of class Preston | |
| phi | Hubbell's phi | |
| optimal.prob | Returns an estimate of the fundamental biodiversity number | |
| butterflies | abundance data for butterflies | |
| saunders | Dataset due to Saunders | |
| print.summary.count | Print method for summary objects | |
| zsm | Zero sum multinomial distribution as derived by McKane | |
| theta.prob | Posterior probabilities for theta | |
| expected.abundance | Expected abundances under the neutral model | |
| copepod | Copepod data supplied by Phil Pugh | |
| +.count | Add two count objects | |
| no.of.ind | Ecosystem diagnostics | |
| alonso | Various functions from Alonso and McKane 2004 | |
| count | Construct, coerce, and test for a count object | |
| untb | Ecological drift simulation under the Unified Neutral Theory of Biodiversity | |
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Details
| Type | Package |
| Date | 2005-10-26 |
| SystemRequirements | PARI/GP >= 2.3.0 [strongly recommended for logkda()] |
| License | GPL |
| Packaged | Tue Apr 17 22:50:27 2007; rksh |
| depends | Brobdingnag , partitions |
| Contributors | Robin S. Hankin |
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