importFrom(survival,Surv)
importFrom(rms,ols)
importFrom(rms,nomogram)
importFrom(Hmisc,rcorr.cens)
importFrom(survey,svykm)
importFrom(survey,svycoxph)
importFrom(survey,svydesign)
importFrom("graphics", "abline", "arrows")
importFrom("stats", "as.formula", "formula", "median", "predict", "quantile")
export(svycox.nomogram,svycox.validate,svycox.calibrate)

