Hello, There is any way of performing a LSD (Least Significant Diference) multiple comparison test to separate the levels of the significant factors of a model? I am migrating from SAS. Thanks a lot. -- ************************************************** Jorge Lampurlan?s Castel Departament d'Enginyeria Agroforestal Escola T?cnica Superior d'Enginyeria Agr?ria Universitat de Lleida Avinguda Rovira Roure, 191 25198-LLEIDA SPAIN Tl.: +34 973 70 25 37 Fax.:+34 073 70 26 73 e-mail: jlampur at eagrof.udl.es