hf.tiu {haarfisz} | R Documentation |
Denoises a Gaussian contaminated vector using translation-invariant hard wavelet thresholding with the universal threshold. Requires WaveThresh3. Also see help to wd
, threshold
, convert
and AvBasis
in WaveThresh.
hf.tiu(x, filter.number = 1, family = "DaubExPhase", min.level = 3, noise.level = 1)
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. |
noise.level |
Standard deviation of the noise, can be set to a positive number or to an estimate (a function of x). |
Returns:
est |
Denoised version of x . |
Piotr Fryzlewicz