DirichletMixture — Dirichlet mixture model
Usage
DirichletMixture(dist: Distribution<a>, alpha: Double, n: Int) →
Distribution<DiscreteDist<a>>
Arguments
-
dist: -
The distribution on component values
-
alpha: -
The dirichlet concentration parameter
-
Default:
1 -
n: -
The number of components
-
Default:
1 + ~Geometric(0.5)
Description
A mixture model with n components where the distribution on component
weights is SymmetricDirichlet(n,alpha). If n
is unknown, this prior resembles the Dirichlet process distribution, but
may have a different marginal distribution on the number of components.
The value for each component has distribution dist.