R: Reshape/reformat packet coefficients into a multivariate data...

wpst2discr {wavethresh} | R Documentation

## Reshape/reformat packet coefficients into a multivariate data set

### Description

The packet coefficients of a nondecimated wavelet packet object are stored internally in an efficient form. This function takes the nondecimated wavelet packets and stores them as a matrix (multivariate data set). Each column in the returned matrix corresponds to an individual packet, each row corresponds to a time index in the original packet or time series.

### Usage

    wpst2discr(wpstobj, groups)

### Arguments

`wpstobj` | A wpst class object, output from `wpst` say
`groups` | A time series containing the group membership at each time point

### Details

Description says it all

### Value

An object of class w2d which is a list containing the following items:

`m` | The matrix containing columns of packet information.
`groups` | Passes through the `group` argument from input.
`level` | Each column corresponds to a packet, this vector contains the information on which resolution level each packet comes from
`pktix` | Like for `level` but for packet indices
`nlevelsWT` | The number of resolution levels in total, from the wpst object

### Author(s)

G P Nason

### See Also

`makewpstDO`, `wpst`

[Package wavethresh version 4.6.8 Index]