Simulation of compositional data from Gaussian mixture models.
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n |
The sample size |
prob |
A vector with mixing probabilities. Its length is equal to the number of clusters. |
mu |
A matrix where each row corresponds to the mean vector of each cluster. |
sigma |
An array consisting of the covariance matrix of each cluster. |
type |
Should the additive ("type=alr") or the isometric (type="ilr") log-ration be used? The default value is for the additive log-ratio transformation. |
A sample from a multivariate Gaussian mixture model is generated.
A list including:
id |
A numeric variable indicating the cluster of simulated vector. |
x |
A matrix containing the simulated compositional data. The number of dimensions will be + 1. |
Michail Tsagris
R implementation and documentation: Michail Tsagris <mtsagris@yahoo.gr> and Giorgos Athineou <athineou@csd.uoc.gr>
Ryan P. Browne, Aisha ElSherbiny and Paul D. McNicholas (2015). R package mixture: Mixture Models for Clustering and Classification.
mix.compnorm, bic.mixcompnorm
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