R: Evaluate the Donoho and Johnstone Doppler signal.

doppler {wavethresh} | R Documentation

## 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

### 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`.

### Value

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

### Author(s)

Arne Kovac

### See Also

`DJ.EX`

### Examples

    #
    # Evalute the Doppler signal at 100 arbitrarily spaced points.
    #
    tt <- sort(runif(100))
    dopp <- doppler(tt)
    ## Not run: plot(tt, dopp, type="l")

[Package wavethresh version 4.6.8 Index]