     import(boot, survey, MASS, methods, mitools, corpcor)
     importFrom("graphics", "plot", "barplot", "mtext", "par", "segments", "title")
     importFrom("stats", "complete.cases", "cov", "cov.wt", "cov2cor", "lm",
             "model.matrix", "model.response", "naprint")
     #importClassesFrom(boot,boot)
##     exportPattern("\\.relimp$")
##     exportPattern("\\.relimplm$")
##     exportPattern("\\.relimplmbooteval$")
##     exportPattern("\\.relimp.default$")
##     exportPattern("\\.relimp.formula$")
##     export("calc.relimp", "boot.relimp", "booteval.relimp")
     export("calc.relimp", "boot.relimp", "booteval.relimp","mianalyze.relimp",
            "print.relimplm","print.relimplmbooteval","print.relimplmbootMI",
             "plot.relimplm","plot.relimplmbooteval","plot.relimplmbootMI",
             "$.relimplm", "$.relimplmbooteval", "$.relimplmbootMI",
             "calc.relimp.default", "calc.relimp.formula", "calc.relimp.lm",
              "boot.relimp.default", "boot.relimp.formula", "boot.relimp.lm",
               "summary.relimplmbootMI")

   exportClasses("relimplm", "relimplmboot", "relimplmbooteval", "relimplmbootMI")
   ## export S4 methods
   exportMethods("coerce", "show")
   ## define S3 methods
S3method(print,relimplm)
S3method(plot,relimplm)
S3method("$",relimplm)
S3method(print,relimplmbootMI)
S3method(plot,relimplmbootMI)
S3method(summary,relimplmbootMI)
S3method("$",relimplmbootMI)
S3method(print,relimplmbooteval)
S3method(plot,relimplmbooteval)
S3method("$",relimplmbooteval)
S3method(calc.relimp,default)
S3method(boot.relimp,default)
S3method(calc.relimp,lm)
S3method(boot.relimp,lm)
S3method(calc.relimp,formula)
S3method(boot.relimp,formula)
