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Jakob Bergman
Director of studies, Department of Statistics
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A measure of dependence between two compositions
Author
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.
Department/s
- Department of Statistics
Publishing year
2009
Language
English
Full text
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Document type
Working paper
Publisher
Department of Statistics, Lund university
Topic
- Probability Theory and Statistics
Keywords
- Dirichlet distribution
- Correlation
- Composition
- Binomial coefficient differentiation
- Simplex
Status
Published