Representation of species composition
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Autores: Vera Pawlowsky Glahn
, T MONREAL PAWLOWSKY, Juan José Egozcue Rubí
- Localización: Proceedings of the 6th International Workshop on Compositional Data Analysis: Girona, 1-7 de juny de 2015 / coord. por Santiago Thió Fernández de Henestrosa , Josep Antoni Martín Fernández, 2015, ISBN 978-84-8458-451-3
- Idioma: inglés
- Enlaces
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Resumen
An alternative to the de Finetti ternary diagram for representing variability of species composition is presented. The proposed alternative is based on the Aitchison geometry of the sample space. It allows statistical modelling and analysis without the problems derived from spurious correlation, typical of a standard analysis of proportions. The method is illustrated with data representing the species composition of Free and FAD tuna school sets sampled in the Indian and Atlantic Oceans during the 2002–2008 period by purse seiners.
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