import("stats")

export("orth", "diag.cls", "diag.obs")
exportClasses("orth", "summary.orth", "cluster.diag.orth", "obsvnl.diag.orth")
exportMethods("show", "summary", "formula", "update", "df.bet", "df.alp",
              "lev.bet", "lev.alp", "cook.robust", "cook.naive")
