dfd: Density of the Flexible Dirichlet distribution

In Compositional: Compositional Data Analysis

Density of the Flexible Dirichlet distribution

Description

Density of the Flexible Dirichlet distribution

Usage

dfd(x, alpha, prob, tau)

Arguments

x	A vector or a matrix with compositional data.
alpha	A vector of the non-negative \alpha parameters.
prob	A vector of the clusters' probabilities. It must sum to one.
tau	The non-negative scalar tau parameter.

Details

For more information see the references and the package FlxeDir.

Value

The density value(s).

Author(s)

Michail Tsagris.

R implementation and documentation: Michail Tsagris [e-mail].

References

Ongaro A. and Migliorati S. (2013). A generalization of the Dirichlet distribution. Journal of Multivariate Analysis, 114, 412–426.

Migliorati S., Ongaro A. and Monti G. S. (2017). A structured Dirichlet mixture model for compositional data: inferential and applicative issues. Statistics and Computing, 27, 963–983.

See Also

rfd

Examples

alpha <- c(12, 11, 10)
prob <- c(0.25, 0.25, 0.5)
tau <- 8
x <- rfd(20, alpha, prob, tau)
dfd(x, alpha, prob, tau)

Compositional documentation built on Oct. 9, 2024, 5:10 p.m.