Learn R Programming

wavethresh (version 4.6.1)

doppler: Evaluate the Donoho and Johnstone Doppler signal.

Description

This function evaluates and returns the Doppler signal from Donoho and Johnstone, (1994).

Usage

doppler(t)

Arguments

t
The domain of the Doppler function (where you wish to evaluate this Doppler function

Value

  • A vector of the same length as the input vector containing the Doppler signal at t

Details

This function evaluates and returns the Doppler signal from Donoho and Johnstone, (1994). (Donoho, D.L. and Johnstone, I.M. (1994), Ideal spatial adaptation by wavelet shrinkage. Biometrika, 81, 425--455).

Another version of this function can be found in DJ.EX.

See Also

DJ.EX

Examples

Run this code
#
# Evalute the Doppler signal at 100 arbitrarily spaced points.
#
tt <- sort(runif(100))
dopp <- doppler(tt)
plot(tt, dopp, type="l")

Run the code above in your browser using DataLab