Simplex
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In geometry, a simplex is a generalization of the notion of a triangle or tetrahedron to arbitrary dimensions. The simplex is so-named because it represents the simplest possible polytope in any given
The four simplexes that can be fully represented in 3D space.
Dirichlet distribution
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In probability and statistics, the Dirichlet distribution, often denoted Dir , is a family of continuous multivariate probability distributions parameterized by a vector α of positive reals. It is a
Simplex
…of subpopulations, as in a ternary plot. In probability theory, a simplex space is often used to represent the space of probability distributions. The Dirichlet distribution, for instance, is defined on a simplex. In industrial statistics, simplices arise in problem formulation and in algorithmic solution. In the design of…
Dirichlet
Plot noninformative prior weight