129 citations · 222 across the 25 of their papers we have counts for
4 papers · 1 filter
Hypothesis testing for two population means: parametric or non-parametric test?
Michail Tsagris, Abdulaziz Alenazi, Kleio-Maria Verrou +1
The parametric Welch -test and the non-parametric Wilcoxon-Mann-Whitney test are the most commonly used two independent sample means tests. More recent testing approaches includ…
Gaussian asymptotic limits for the -transformation in the analysis of compositional data
Yannis Pantazis, Michail Tsagris, Andrew T. A. Wood
Compositional data consists of vectors of proportions whose components sum to 1. Such vectors lie in the standard simplex, which is a manifold with boundary. One issue that has bee…
Extremely efficient permutation and bootstrap hypothesis tests using R
Christina Chatzipantsiou, Marios Dimitriadis, Manos Papadakis +1
Re-sampling based statistical tests are known to be computationally heavy, but reliable when small sample sizes are available. Despite their nice theoretical properties not much ef…
A folded model for compositional data analysis
Michail Tsagris, Connie Stewart
A folded type model is developed for analyzing compositional data. The proposed model involves an extension of the -transformation for compositional data and provides a new and…