mw: Dyadic Wavelet Transform

In Rwave: Time-Frequency Analysis of 1-D Signals

Dyadic Wavelet Transform

Description

Dyadic wavelet transform, with Mallat's wavelet. The reconstructed signal preserves locations and values at extrema.

Usage

mw(inputdata, maxresoln, filtername="Gaussian1", scale=FALSE, plot=TRUE)

Arguments

inputdata	either a text file or an R object containing data.
maxresoln	number of decomposition scales.
filtername	name of filter (either Gaussian1 for Mallat and Zhong's wavelet or Haar wavelet).
scale	when set, the wavelet transform at each scale is plotted with the same scale.
plot	indicate if the wavelet transform at each scale will be plotted.

Details

The decomposition goes from resolution 1 to the given maximum resolution.

Value

Structure containing

original	original signal.
Wf	dyadic wavelet transform of signal.
Sf	multiresolution of signal.
maxresoln	number of decomposition scales.
np	size of signal.

References

See discussions in the text of “Practical Time-Frequency Analysis”.

See Also

dwinverse, mrecons, ext.

Rwave documentation built on Oct. 22, 2022, 1:05 a.m.