R: Threshold two-dimensional compressed wavelet decomposition...

threshold.imwdc {wavethresh} | R Documentation

## Threshold two-dimensional compressed wavelet decomposition object

### Description

This function provides various ways to threshold a `imwdc` class object.

### Usage

    ## S3 method for class 'imwdc'
    threshold(imwdc, verbose=FALSE, ...)

### Arguments

`imwdc` | The two-dimensional compressed wavelet decomposition object that you wish to threshold.
`verbose` | if TRUE then the function prints out informative messages as it progresses.
`...` | other arguments passed to the `threshold.imwd` function to control the thresholding characteristics such as policy, type of thresholding etc.

### Details

This function performs exactly the same function as `threshold.imwd` except is accepts objects of class `imwdc` rather than imwd. Indeed, this function physically calls the `threshold.imwd` function after using the `uncompress` function to convert the input `imwdc` object into a `imwd` object.

### Value

An object of class `imwdc` if the compression option is supplied and set to TRUE, otherwise a `imwd` object is returned. In either case the returned object contains the thresholded coefficients. Note that if the `return.threshold` option is set to TRUE then the threshold values will be returned rather than the thresholded object.

### RELEASE

Version 3.6 Copyright Guy Nason and others 1997

### Author(s)

G P Nason

### References

The FDR code segments were kindly donated by Felix Abramovich.

### See Also

`imwd`, `imwd.object`, `imwdc.object`, `threshold`, `uncompress`.

### Examples

    #
    # See examples in \code{\link{threshold.imwd}}.
    #

[Package wavethresh version 4.6.8 Index]