DRF.5F.rates            Estimation of spot rates with the De
                        Rezende-Ferreira 5 Factor model
DRF.5F.tFix             Estimation of the De Rezende-Ferreira 5 Factor
                        model's parameters with fixed \ tau
DRF.5F.tVar             Estimation of the De Rezende-Ferreira 5 Factor
                        model's parameters with variable \ tau
DeRezende.Ferreira-package
                        Zero Coupon Yield Curve Modelling
ZC_Brazil               Zero-Coupon interest rates
ZC_China                Zero-Coupon interest rates
ZC_India                Zero-Coupon interest rates
ZC_Russia               Zero-Coupon interest rates
ZC_SouthAfrica          Zero-Coupon interest rates
