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stat.ME2025
Modelling toroidal and cylindrical data via the trivariate wrapped Cauchy copula with non-uniform marginals
Sophia Loizidou, Christophe Ley, Shogo Kato +1
In this paper, we propose a new flexible family of distributions for data that consist of three angles, two angles and one linear component, or one angle and two linear components.…
stat.ME2025★ 1 cited
The trivariate wrapped Cauchy copula
Shogo Kato, Christophe Ley, Sophia Loizidou +1
In this paper, we propose a new flexible distribution for data on the three-dimensional torus which we call a trivariate wrapped Cauchy copula. Our trivariate copula has several at…
stat.ME2024
Assumption-Lean Quantile Regression
Georgi Baklicharov, Christophe Ley, Vanessa Gorasso +2
Quantile regression is a powerful tool for detecting exposure-outcome associations given covariates across different parts of the outcome's distribution, but has two major limitati…