hf.u {haarfisz}R Documentation

hf.u

Description

Denoises a Gaussian contaminated vector using wavelet thresholding with the universal threshold. Requires WaveThresh3. Also see help to wd, threshold,and link{wr} in WaveThresh.

Usage

hf.u(x, filter.number = 10, family = "DaubLeAsymm", min.level = 3, type = "hard")

Arguments

x The noisy vector, its length must be a power of 2.
filter.number The filter number of the analysing wavelet. Can be set to 1, 2, ..., 10 for family == "DaubExPhase", or to 4, 5, ..., 10 for family == "DaubLeAsymm".
family The family of wavelet bases from which the wavelet filter.number is chosen. Can be set to "DaubExPhase" or "DaubLeAsymm".
min.level The minimum level thresholded.
type Type of thresholding, can be set to hard or soft

Value

Returns:

est Denoised version of x.

Author(s)

Piotr Fryzlewicz


[Package haarfisz version 4.0-2 Index]