[图书][B] Modeling and analysis of compositional data
Modeling and Analysis of Compositional Data presents a practical and comprehensive
introduction to the analysis of compositional data along with numerous examples to illustrate …
introduction to the analysis of compositional data along with numerous examples to illustrate …
[图书][B] Analyzing compositional data with R
KG Van den Boogaart, R Tolosana-Delgado - 2013 - Springer
Data describing amounts of components of specimens are compositional if the size of each
specimen is constant or irrelevant. Ideally compositional data is given by relative portions …
specimen is constant or irrelevant. Ideally compositional data is given by relative portions …
Compositional data analysis: where are we and where should we be heading?
J Aitchison, J J. Egozcue - Mathematical Geology, 2005 - Springer
We take stock of the present position of compositional data analysis, of what has been
achieved in the last 20 years, and then make suggestions as to what may be sensible …
achieved in the last 20 years, and then make suggestions as to what may be sensible …
Compositional data: the sample space and its structure
JJ Egozcue, V Pawlowsky-Glahn - Test, 2019 - Springer
The log-ratio approach to compositional data (CoDa) analysis has now entered a mature
phase. The principles and statistical tools introduced by J. Aitchison in the eighties have …
phase. The principles and statistical tools introduced by J. Aitchison in the eighties have …
Phylogenetic and functional characteristics of household yard floras and their changes along an urbanization gradient
S Knapp, L Dinsmore, C Fissore, SE Hobbie… - Ecology, 2012 - Wiley Online Library
Urban areas are among the most heavily managed landscapes in the world, yet they harbor
a remarkable richness of species. Private yards are common habitats in urban areas and are …
a remarkable richness of species. Private yards are common habitats in urban areas and are …
Insights into magma storage beneath a frequently erupting arc volcano (Villarrica, Chile) from unsupervised machine learning analysis of mineral compositions
A key method to investigate magma dynamics is the analysis of the crystal cargoes carried
by erupted magmas. These cargoes may comprise crystals that crystallize in different parts …
by erupted magmas. These cargoes may comprise crystals that crystallize in different parts …
Symbiotic fungi alter plant chemistry that discourages leaf‐cutting ants
C Estrada, WT Wcislo, SA Van Bael - New Phytologist, 2013 - Wiley Online Library
Fungal symbionts that live asymptomatically inside plant tissues (endophytes) can influence
plant–insect interactions. Recent work has shown that damage by leaf‐cutting ants, a major …
plant–insect interactions. Recent work has shown that damage by leaf‐cutting ants, a major …
The magmatic evolution of South-East Crater (Mt. Etna) during the February–April 2021 sequence of lava fountains from a mineral chemistry perspective
Abstract The South-East Crater (SEC) at Mt. Etna started a period of lava fountaining in
December 2020, producing over 60 paroxysms until February 2022. The activity had an …
December 2020, producing over 60 paroxysms until February 2022. The activity had an …
[PDF][PDF] Urbanization causes shifts of species' trait state frequencies
Urbanization is one of the most extreme forms of land transformation. It is supposed to
change the frequencies of species trait states in species assemblages. We hypothesize that …
change the frequencies of species trait states in species assemblages. We hypothesize that …
A parametric approach for dealing with compositional rounded zeros
J Palarea-Albaladejo, JA Martín-Fernández… - Mathematical …, 2007 - Springer
In this work, a parametric approach for replacing data below the detection limit, also known
as rounded zeros, in compositional data sets is proposed. Compositional rounded zeros …
as rounded zeros, in compositional data sets is proposed. Compositional rounded zeros …