EAN: 9783319964201

Bilder-Quelle: shopping24.de – Sport

This book presents the statistical analysis of compositional data using the log-ratio approach. It includes a wide range of classical and robust statistical methods adapted for compositional data analysis such as supervised and unsupervised methods like PCA correlation analysis classification and regression. In addition it considers special data structures like high-dimensional compositions and compositional tables. The methodology introduced is also frequently compared to methods which ignore the specific nature of compositional data. It focuses on practical aspects of compositional data analysis rather than on detailed theoretical derivations thus issues like graphical visualization and preprocessing (treatment of missing values zeros outliers and similar artifacts) form an important part of the book. Since it is primarily intended for researchers and students from applied fields like geochemistry chemometrics biology and natural sciences economics and social sciences all the proposed methods are accompanied by worked-out examples in R using the package robCompositions.

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24.03.2025 um 19:42 Uhr

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