importFrom(Runuran, pinvd.new, udghyp, uq)
importFrom("stats", "cov", "optim", "pt", "qgamma", "qnorm", "qt",
     "rgamma", "rnorm", "runif", "uniroot", "var")
importFrom("utils", "write.table")
export(SISTCopula, NVTCopula, new.portfobj)
	   



