Scholarlink

We have recently introduced the logratio Student t distribution, a multivariate density function on the simplex that extends the logratio normal distribution. Thanks to its properties, this model provides a better fit for compositional data exhibiting greater variability than expected under the normal assumption. For this reason, it can be effectively employed in diagnostic data analysis, particularly for identifying deviations from standard compositional patterns.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

An Alternative to the Aitchison Atypicality Index

  • 会议论文

  • 发表日期：

    2025年

查看全文
  • Gianna S. Monti,
  • Gloria Mateu-Figueras,
  • Vera Pawlowsky-Glahn,
  • Juan J. Egozcue

摘要

We have recently introduced the logratio Student t distribution, a multivariate density function on the simplex that extends the logratio normal distribution. Thanks to its properties, this model provides a better fit for compositional data exhibiting greater variability than expected under the normal assumption. For this reason, it can be effectively employed in diagnostic data analysis, particularly for identifying deviations from standard compositional patterns.