importFrom("stats", "ks.test","coef", "contrasts", "dgeom", "glm", "logLik","model.matrix", "model.response", "quasipoisson", "runif","df.residual", "pt", "qnorm", "quantile")
importFrom("survival","survreg","Surv")
importFrom("graphics", "lines", "plot", "polygon")
import(maxLik,DiscreteWeibull,Ecdat)
export(ddw,qdw,pdw,rdw,dw.meanvar,dw.parest,dw.reg,res.dw)




