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stat.ME2023
Identifying Important Pairwise Logratios in Compositional Data with Sparse Principal Component Analysis
Viktorie Nesrstová, Ines Wilms, Karel Hron +1
Compositional data are characterized by the fact that their elemental information is contained in simple pairwise logratios of the parts that constitute the composition. While pair…
stat.ME2022
Compositional Cubes: A New Concept for Multi-factorial Compositions
Kamila Fačevicová, Peter Filzmoser, Karel Hron
Compositional data are commonly known as multivariate observations carrying relative information. Even though the case of vector or even two-factorial compositional data (compositi…
stat.ME2019
Robust Principal Component Analysis for Compositional Tables
Julie Rendlová, Karel Hron, Kamila Fačevicová +1
A data table which is arranged according to two factors can often be considered as a compositional table. An example is the number of unemployed people, split according to gender a…