Abstract :
This note comments on and corrects some of the referrals and comments of Castillo et al. [Castillo, E., Minguez, R., Castillo, C., Confino, A.S., 2008. Dealing with the multiplicity of solutions of the ℓ1ℓ1 and ℓ∞ℓ∞ regression models. European Journal of Operational Research 188, 460–484] concerning the origins and uses of linear programming to estimate L1L1 and L∞L∞ statistical regressions.