2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/3830We discuss non-parametric density estimation and regression for astrophysics problems. In particular, we show how to compute non-parametric confidence intervals for the location and size of peaks of a function. We illustrate these ideas with recent data on the Cosmic Microwave Background. We also briefly discuss non-parametric Bayesian inference.Invited presentation at "Statistical Challenges in Modern Astronomy III" July 18-21 2001 Penn St. University. See http://www.picagroup.org for more information on the PICA group membership, software and recent papersAstrophysicstext