ZeroCurve
There are two key interpolation schemes available in the stats
package:
constant and linear interpolation via stats::approxfun()
and
spline interpolation via stats::splinefun()
. The interpolate()
method
is a simple wrapper around these methods that are useful for the purposes
of interpolation financial market objects like zero coupon interest rate
curves.
# S3 method for ZeroCurve
interpolate(x, at, ...)
a ZeroCurve
object
a non-negative numeric vector representing the years at which to interpolate the zero curve
unused in this method
a numeric vector of zero rates (continuously compounded, act/365)
Other interpolate functions: interpolate_dfs
,
interpolate_zeros
,
interpolate
# NOT RUN {
zc <- build_zero_curve(LogDFInterpolation())
interpolate(zc, c(1.5, 3))
# }
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