Colours and cocktails: Compositional data analysis 2013 lancaster lecture
The different constituents of physical mixtures such as coloured paint, cocktails, geological and other samples can be represented by d-dimensional vectors called compositions with non-negative components that sum to one. Data in which the observations are compositions are called compositional data. There are a number of different ways of thinking about and consequently analysing compositional data. The log-ratio methods proposed by Aitchison in the 1980s have become the dominant methods in the...[Show more]
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|Source:||Australian and New Zealand Journal of Statistics|
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