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Density of a mixture of von Mises-Fisher distributions.
dmixvmf(y, probs, mu, k, logden = FALSE)A vector with the (log) density values of y.
A matrix with unit vectors.
This is avector with the mixing probability of each group.
A matrix with the mean direction of each group.
A vector with the concentration parameter of each group.
If you the logarithm of the density values set this to TRUE.
Michail Tsagris.
R implementation and documentation: Michail Tsagris mtsagris@uoc.gr.
The function computes the density for a given mixture of von Mises-Fisher distributions.
Kurt Hornik and Bettina Grun (2014). movMF: An R Package for Fitting Mixtures of von Mises-Fisher Distributions http://cran.r-project.org/web/packages/movMF/vignettes/movMF.pdf
mixvmf.mle, rvmf, bic.mixvmf
k <- runif(3, 4, 6)
probs <- c(0.2, 0.5, 0.3)
mu <- matrix(rnorm(9), ncol = 3)
mu <- mu / sqrt( rowSums(mu^2) )
x <- rmixvmf(200, probs, mu, k)$x
b <- dmixvmf(x, probs, mu, k)
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