Finite Representation of Quantile Sets for Multivariate Data via Vector Linear Programming

Abstract

Empirical quantiles for finitely distributed univariate random variables can be obtained by solving a certain linear program. It is shown in this short note that multivariate empirical quantiles can be obtained in a very similar way by solving a vector linear program. This connection provides a new approach for computing Tukey depth regions and more general cone quantile sets.

revised version, more detailed explanation