Sufficient dimension reduction (SDR) methods target finding lower-dimensional representations of a multivariate predictor to preserve all the information about the conditional distribution of the resp
Data and R script for the illustrative analyses reported in: Del Giudice, M. (2020). Effective dimensionality: A tutorial. Multivariate Behavioral Research.
The halfspace depth is a well-studied tool of nonparametric statistics in multivariate spaces. We introduce a flag halfspace – an intermediary between a closed halfspace and its interior – and demonst