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Jakob Bergman
Studierektor, Statistiska institutionen
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A measure of dependence between two compositions
Författare
Summary, in English
A composition is a vector of positive components summing to a constant.
We consider the problem of describing the correlation between two compo-
sitions. Using a bicompositional Dirichlet distribution, we calculate a joint
correlation coefficient, based on the concept of information gain, between two
compositions. Numerical values of the joint correlation coefficient are calcu-
lated for compositions of two and three components.
We consider the problem of describing the correlation between two compo-
sitions. Using a bicompositional Dirichlet distribution, we calculate a joint
correlation coefficient, based on the concept of information gain, between two
compositions. Numerical values of the joint correlation coefficient are calcu-
lated for compositions of two and three components.
Avdelning/ar
- Statistiska institutionen
Publiceringsår
2009
Språk
Engelska
Fulltext
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Dokumenttyp
Working paper
Förlag
Department of Statistics, Lund university
Ämne
- Probability Theory and Statistics
Nyckelord
- Dirichlet distribution
- Correlation
- Composition
- Binomial coefficient differentiation
- Simplex
Aktiv
Published