Interest Rate from a Discount Factor Curve

Last updated 9 November 2026

Function reference › Interest Rates › Interest Rates

1 GIAnalyzer function for Excel. Optional arguments are shown in [brackets].

GIA_IR_IRfromDFCurve

Interpolates the interest rate for a specific date, given a discount factor curve.

GIA_IR_IRfromDFCurve(CurveDates, CurveRates, T0, TDate, Comp, Days, Interp)
ArgumentUseDescription
CurveDatesRequiredThe array of dates in the interest rate curve.
CurveRatesRequiredThe array of rates in the interest rate curve.
T0RequiredThe start date of the interest rate perdiod.
TDateRequiredThe target date for the interpolation.
CompRequiredThe compounding basis of the interest rates (Annual, SemiAnnual, Quarterly, Monthly, Simple, Continuous)
DaysRequiredThe time basis of the interest rates (act/360, act/365, act/act, 30E/360, 30I/360)
InterpRequiredThe interpolation method (Linear, LogLinear, CubicSpline, Exponential)