Statistics of compositional data
Gerald van den Boogaart
Technical University Freiberg, Germany
The workshop will teach statistics of compositional
data analysis using R and the R package compositions. Compositional data is
characterised by the fact that the sum is an artefact of the measurment
process (e.g. a constant like100%) and not meaningfull for process to
analysed. Analysing compositional data with classical multivariate tools
leads to many artefacts. However the so called "working in coordinates
principle" allows to create similar tools for statistical analysis
especially adapted for compositional data.
Participants are expected to bring a laptop or
computer to the workshop with R and the R package compositions installed.)
The help with installing the package can be offered by the instructures
prior to the workshop during the conference. Instructures are Gerald van den
Boogaart and Matevz Bren, two of the authors of the compositions package.