Talks and Poster Presentations (without Proceedings-Entry):
P. Filzmoser:
"Compositional Data Analysis";
Talk: JOCLAD 2019,
Viseu, Portugal (invited);
2019-04-11
- 2019-04-13.
English abstract:
Compositional data analysis: concepts, software, and examples
Peter Filzmoser1
1 Institute of Statistics and Mathematical Methods in Economics, TU Wien, Austria
Compositional data analysis deals with relative information by making use of log-ratios between the values of the variables. This approach was introduced for constrained data, e.g. for proportional data that sum up to 1. With the log-ratio approach, hoewver, the contraint is not relevant, and this approach can be used for any data set where relative rather than absolute information should be processed. We will present the main concepts of this approach and
illustrate these with data examples.
Keywords:
compositional data, log-ratio approach, multivariate statistics, software environment R
Electronic version of the publication:
https://publik.tuwien.ac.at/files/publik_282578.pdf
Created from the Publication Database of the Vienna University of Technology.