drawwp.default {wavethresh}

Subsidiary routine that actually computes wavelet packet values

Description

Function computes the values of a given wavelet packet on a discrete grid.

Usage

drawwp.default(level, index, filter.number = 10, family = "DaubLeAsymm",
    resolution = 64 * 2^level)

Arguments

level

The resolution level of the packet you want

index

The packet index of the packet you want

filter.number

The type of wavelet you want, see filter.select

family

The family of wavelet you want, see filter.select

resolution

The number of ordinates at which you want the wavelet packet

Details

Function works by computing a wavelet packet transform of a zero vector. Then inserting a single one somewhere in the desired packet, and then inverts the transform.

Value

A vector containing the "y" values of the required wavelet packet.

Author(s)

G P Nason

See Also

draw.wp,InvBasis, nlevelsWT, putpacket, wp