Lovaglio, Pietro Giorgio, and Gianmarco Vacca. “%ERA: A SAS Macro for Extended Redundancy Analysis”. Journal of Statistical Software, Code Snippets 74, no. 1 (October 27, 2016): 1–19. Accessed November 21, 2024. https://www.jstatsoft.org/index.php/jss/article/view/v074c01.