Dear All, I am trying to see if there is a package that will allow ALR within GEE for R. I have found V J Carey of Harvard's page, but it seems out of data. Does anyone know of such a package? Sincerely Russell Barbour Ph.D. Co-Director for Statistical Analysis Yale Center for Interdisciplinary Research on AIDS. Yale School of Medicine 135 College St. Suite 200 New Haven, CT 06510 Ph: 203-764-4332 Fax: 203-764-4353 http://cira.med.yale.edu