2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/136893Comment: Fisher Lecture: Dimension Reduction in Regression [arXiv:0708.3774]Published at http://dx.doi.org/10.1214/088342307000000041 in the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org)Methodologytext