wavethresh: accessc – R documentation

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accessc

Get variance information from irregularly spaced wavelet decomposition object.

Description

This function gets information from the c component of an irregwd.objects an irregularly spaced wavelet decomposition object.

Note that this function is not the same as accessC which obtains father wavelet coefficients from an wd class object.

Usage

accessc(irregwd.structure, level, boundary=FALSE)

Arguments

`irregwd.structure`	Irregular wavelet decomposition object from which you wish to extract parts of the `c` component from.
`level`	The level that you wish to extract. This value ranges from 0 to the `nlevelsWT`(irregwd.structure)-1.
`boundary`	If this argument is T then all of the boundary correction values will be returned as well (note: the length of the returned vector may not be a power of 2). If boundary is false, then just the coefficients will be returned. If the decomposition (or reconstruction) was done with periodic boundary conditions then this option has no effect.

Details

The irregwd function produces a irregular wavelet decomposition (reconstruction) structure.

The c component is stored in a similar way to the C and D vectors which store the father and mother wavelet coefficients respectively. Hence to access the information the accessc function plays a similar role to accessC and accessD functions.

Value

A vector of the extracted data.

RELEASE

Version 3.9.4 Code Copyright Arne Kovac 1997. Help Copyright Guy Nason 2004.

Author(s)

G P Nason

Examples

#
# Most users will not need to use this function. However, see the main
# examples for the irregular wavelet denoising in the examples for
# makegrid.
#

wavethresh

Wavelets Statistics and Transforms

v4.6.8

GPL (>= 2)

Authors

Guy Nason [aut, cre]

Initial release

2016-10-18