Hi all, Is there in R a so called box m-test for testing the equality of the cov. matrix for checking on homoscedasticity? If not (i havent found it) is there a workaround for this ? thanks -- Dr.Nicolaas Busscher Universität GH Kassel Nordbahnhofstrasse: 1a, D-37213 Witzenhausen Phone: 0049-(0)5542-98-1715, Fax: 0049-(0)5542-98-1713