A folded model for compositional data analysis
| dc.contributor.author | Tsagris, Michail | |
| dc.contributor.author | Stewart, Connie | |
| dc.date.accessioned | 2023-06-06T14:26:45Z | |
| dc.date.available | 2023-06-06T14:26:45Z | |
| dc.date.issued | 2020 | |
| dc.description.abstract | A folded type model is developed for analysing compositional data. The proposed model involves an extension of the α-transformation for compositional data and provides a new and flexible class of distributions for modelling data defined on the simplex sample space. Despite its rather seemingly complex structure, employment of the EM algorithm guarantees efficient parameter estimation. The model is validated through simulation studies and examples which illustrate that the proposed model performs better in terms of capturing the data structure, when compared to the popular logistic normal distribution, and can be advantageous over a similar model without folding. | |
| dc.description.copyright | This is the peer reviewed version of the following article: [A folded model for compositional data analysis. Australian & New Zealand Journal of Statistics 62, 2 p249-277 (2020)], which has been published in final form at https://doi.org/10.1111/anzs.12289 | |
| dc.identifier.doi | 10.1111/anzs.12289 | |
| dc.identifier.issn | 1369-1473 | |
| dc.identifier.issn | 1467-842X | |
| dc.identifier.uri | https://unbscholar.lib.unb.ca/handle/1882/26269 | |
| dc.language.iso | en | |
| dc.publisher | Wiley | |
| dc.relation.hasversion | https://doi.org/10.1111/anzs.12289 | |
| dc.relation.ispartof | Australian & New Zealand Journal of Statistics | |
| dc.rights | http://purl.org/coar/access_right/c_abf2 | |
| dc.subject.discipline | Mathematics and Statistics | |
| dc.title | A folded model for compositional data analysis | |
| dc.type | journal-article | |
| oaire.citation.endPage | 277 | |
| oaire.citation.issue | 2 | |
| oaire.citation.startPage | 249 | |
| oaire.citation.title | Australian & New Zealand Journal of Statistics | |
| oaire.citation.volume | 62 | |
| oaire.license.condition | other | |
| oaire.version | http://purl.org/coar/version/c_ab4af688f83e57aa |