Compositional Data Analysis: introduction and applications (and some practice)


Compositional Data Analysis: introduction and applications (and some practice)

Tolosana-Delgado, R.

This lecture will cover the fundamental aspects of compositional data analysis, from brief theoretical concepts to most widely used statistical analysis tools. Concepts will be illustrated with examples from Sediment Provenance Analysis. These will include estimating modal compositions, building confidence regions and drawing them in ternary diagrams, developing supervised classification methods to infer the origin of a sediment out of its (bulk or varietal grain) composition, and establishing regression models to describe compositional linear processes such as comminution and weathering.

Keywords: alr; centered logratio; principal components; sediment provenance; spurious correlation

  • Invited lecture (Conferences)
    Sedimentary Provenance Analysis (short course), 21.-23.09.2016, Göttingen, Deutschland

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Publ.-Id: 24757