mw {Rwave}

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.