export(additive)
export(ar.dual.dea)
export(cost.dea)
export(ddf)
export(dea)
export(direc.dea)
export(dual.dea)
export(effdea.b.f)
export(faremalm2)
export(fdh)
export(int.dea)
export(lp2)
export(orderm)
export(revenue.dea)
export(sbm.tone)
export(sbm.vrs)
importFrom(stats, na.omit)
importFrom(lpSolve,lp)
importFrom(geometry, convhulln)
importFrom(Hmisc, Lag)
