Implementation of Sampling Formulas for the Unified Neutral Model of Biodiversity and Biogeography, with or without Guild Structure


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Documentation for package ‘GUILDS’ version 1.4.6

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GUILDS-package Package implementing the Guilds sampling formula for the Neutral Theory of Biodiversity
expected.SAD Calculate the expected species abundance distribution of the standard neutral model, given theta, m and J
expected.SAD.Guilds Estimate the expected species abundance distribution of both guilds using the guilds model, provided theta, alpha_x, alpha_y and J.
expected.SAD.Guilds.Conditional Estimate the expected species abundance distribution of both guilds using the guilds model, provided theta, alpha_x, alpha_y, conditional on the size of guild X, Jx and the size of guild Y, Jy.
generate.ESF Generate community data under the standard neutral model of biodiversity, using the urn scheme as described in Etienne 2005
generate.Guilds Generate Artificial data under the GUILDS model
generate.Guilds.Cond Generate Artificial data under the GUILDS model, conditioned on Guild size
GUILDS Package implementing the Guilds sampling formula for the Neutral Theory of Biodiversity
logLikelihood.ESF Likelihood of the Etienne sampling formula
logLikelihood.Guilds Likelihood of the Guilds sampling formula
logLikelihood.Guilds.Conditional Likelihood of the Guilds sampling formula, conditional on guild size
maxLikelihood.ESF Maximization of the loglikelihood given the standard Neutral Model, using the Etienne Sampling Formula
maxLikelihood.Guilds Maximization of the loglikelihood under the Guilds Model.
maxLikelihood.Guilds.Conditional Maximization of the loglikelihood under the Guilds Model, conditioned on guild size.
preston_plot Barplot in Preston style of an abundance dataset