R: Return a PsiJ list object style name.

Psiname {wavethresh} | R Documentation

## Return a PsiJ list object style name.

### Description

This function returns a character string according to a particular format for naming `PsiJ` objects.

### Usage

    Psiname(J, filter.number, family)

### Arguments

`J` | A negative integer representing the order of the `PsiJ` object.
`filter.number` | The index number of the wavelet used to build the `PsiJ` object.
`family` | The wavelet family used to build the `PsiJ` object.

### Details

Some of the objects computed by `PsiJ` take a long time to compute. Hence it is a good idea to store them and reuse them. This function generates a name according to a particular naming scheme that permits a search algorithm to easily find the matrices.

Each object has three defining characteristics: its order, filter.number and family. Each of these three characteristics are concatenated together to form a name.

This function performs exactly the same role as `rmname` except for objects produced by `PsiJ`.

### Value

A character string containing the name of an object according to a particular naming scheme.

### RELEASE

Version 3.9 Copyright Guy Nason 1998

### Author(s)

G P Nason

### References

Nason, G.P., von Sachs, R. and Kroisandt, G. (1998). Wavelet processes and adaptive estimation of the evolutionary wavelet spectrum. Technical Report, Department of Mathematics University of Bristol/ Fachbereich Mathematik, Kaiserslautern

### See Also

`PsiJ`

### Examples

    #
    # What's the name of the order 4 Haar PsiJ object?
    #
    Psiname(-4, filter.number=1, family="DaubExPhase")
    #[1] "Psi.4.1.DaubExPhase"
    #
    # What's the name of the order 12 Daubechies least-asymmetric wavelet PsiJ
    # with 7 vanishing moments?
    #
    Psiname(-12, filter.number=7, family="DaubLeAsymm")
    #[1] "Psi.12.7.DaubLeAsymm"

[Package wavethresh version 4.6.8 Index]