Comments on:: recent advances in directional statistics.

• Stephan F. Huckemann ^[1]
  1. [1] University of Göttingen

     University of Göttingen

     Landkreis Göttingen, Alemania

     
• Localización: Test: An Official Journal of the Spanish Society of Statistics and Operations Research, ISSN-e 1863-8260, ISSN 1133-0686, Vol. 30, Nº. 1, 2021, págs. 71-75
• Idioma: inglés
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• Resumen

  • Inspired by this felicitous, highly concentrated and rather exhaustive review of a rapidly growing field, many larger research areas that warrant further investigation come to mind. In this comment, three areas are selected: fully satisfactory PCA on tori and polyspheres, harnessing linearity through Lie algebras underlying homogeneous spaces such as those for directional data, and statistical analysis based on critical points (e.g. mode and antimodes) of Fréchet Lp-functions.