wavethresh (version 4.7.3)

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)

Value

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

Arguments

t

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

Author

Arne Kovac

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

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