mpostfilter {wavethresh}

Multiwavelet postfilter

Description

A multiwavelet postfilter turns a multivariate sequence into a univariate sequence. As such, the postfilter is used on the inverse transform, it is the inverse of an earlier used prefilter.

Not intended for direct user use.

Usage

mpostfilter(C, prefilter.type, filter.type, 
    nphi, npsi, ndecim, nlevels, verbose = FALSE)

Arguments

C

The multivariate sequence you wish to turn back into a univariate one using the inverse of an earlier prefilter operation.

prefilter.type

Controls the type of prefilter (see Tim Downie's PhD thesis, or references therein. Types include Minimal, Identity, Repeat, Interp, default, Xia, Roach1, Roach3, Donovan3 or Linear

filter.type

The type of multiwavelet: can be Geronimo or Donovan3

nphi

The number of father wavelets in the system

npsi

The number of mother wavelets in the system

ndecim

The ndecim parameter (not apparently used here)

nlevels

The number of levels in the multiwavelet transform

verbose

If TRUE then informative messages are printed as the function progresses

Details

Description says all

Value

The appropriate postfiltered data.

Author(s)

Tim Downie

See Also

mprefilter,mwd