A comparison of methods for analysing compositional data with fixed and variable totals: a simulation study using the examples of time-use and dietary data
Compositional data with fixed and variable totals behave differently. All existing approaches to analysing such data have utility but need to be carefully selected. Investigators should explore the shape of the relationships between the compositional components and the outcome and chose an approach that matches it best.
Authors
- Michelle Morris (ORCID: https://orcid.org/0000-0002-9325-619X)
- Georgia D Tomova (ORCID: https://orcid.org/0000-0003-1984-8055)
- Peter W. G. Tennant (ORCID: https://orcid.org/0000-0003-1555-069X)
- Laurie Berrie (ORCID: https://orcid.org/0000-0003-3550-5087)
- Rosemary Walmsley (ORCID: https://orcid.org/0000-0002-1916-2478)
Institutions
- Turing Institute (GB)
- University of Leeds (GB)
- British Library (GB)
- The Alan Turing Institute (GB)
- Oldham Council (GB)
- University of Edinburgh (GB)
Publication Details
- Journal
- BMC Medical Research Methodology
- Published
- 2025-04-17
- DOI
- https://doi.org/10.1186/s12874-025-02509-1
- Citations
- 2
- Primary Topic
- Nutritional Studies and Diet
- Type
- article
- Field-Weighted Citation Impact
- 3.76
Funders
- Alan Turing Institute