importFrom("stats", "as.formula", "complete.cases", "glm", "logLik",
             "model.frame", "model.matrix", "optim", "pgamma", "plnorm",
             "plogis", "pweibull", "qnorm", "quantile", "stepfun",
             "terms", "vcov")
importFrom("flexsurv", "pgengamma")
import(Icens)
import(fdrtool)
import(interval)
import(optimx)
import(survival)
import(plyr)


export(PIMixture)
export(PIMixture.predict)
