wd.dh: Compute specialized wavelet transform for density estimation

In wavethresh: Wavelets Statistics and Transforms

Compute specialized wavelet transform for density estimation

Description

Computes the discrete wavelet transform, but with zero boundary conditions especially for density estimation.

Usage

wd.dh(data, filter.number = 10, family = "DaubLeAsymm", type = "wavelet",
    bc = "periodic", firstk = NULL, verbose = FALSE)

Arguments

data	The father wavelet coefficients
filter.number	The smoothness of the underlying wavelet to use, see filter.select
family	The wavelet family to use, see filter.select
type	The type of wavelet to use
bc	Type of boundarie conditions
firstk	A parameter that originates from denproj
verbose	If TRUE then informative messages are printed.

Details

This is a subsidiary routine, not intended for direct user use for density estimation. The main routines for wavelet density estimation are denwd, denproj, denwr.

The input to this function should be projected father wavelet coefficients as computed by denproj, but usually supplied to this function by denwd.

Thresholding should be carried out by the user independently of these functions.

Value

An object of class wd, but assumed on the basis of zero boundary conditions.

Author(s)

David Herrick

See Also

denproj, denwd

wavethresh documentation built on Sept. 11, 2024, 9:33 p.m.