The catline for deep regression
Journal of Multivariate Analysis
Robustness of deepest regression
Journal of Multivariate Analysis
Journal of Multivariate Analysis
Measuring overlap in binary regression
Computational Statistics & Data Analysis
Calculation of simplicial depth estimators for polynomial regression with applications
Computational Statistics & Data Analysis
Distribution-free tests for polynomial regression based on simplicial depth
Journal of Multivariate Analysis
Tests for multiple regression based on simplicial depth
Journal of Multivariate Analysis
Depth notions for orthogonal regression
Journal of Multivariate Analysis
Robust estimators and tests for bivariate copulas based on likelihood depth
Computational Statistics & Data Analysis
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We investigate depth notions for general models which are derived via the likelihood principle. We show that the so-called likelihood depth for regression in generalized linear models coincides with the regression depth of Rousseeuw and Hubert (J. Amer. Statist. Assoc. 94 (1999) 388) if the dependent observations are appropriately transformed. For deriving tests, the likelihood depth is extended to simplicial likelihood depth. The simplicial likelihood depth is always a U-statistic which is in some cases not degenerated. Since the U-statistic is degenerated in the most cases, we demonstrate that nevertheless the asymptotic distribution of the simplicial likelihood depth and thus asymptotic @a-level tests for general types of hypotheses can be derived. The tests are distribution-free. We work out the method for linear and quadratic regression.