mbtrim: Trim Dyadic Wavelet Transform Extrema

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

Trim Dyadic Wavelet Transform Extrema

Description

Trimming of dyadic wavelet transform local extrema, using bootstrapping.

Usage

mbtrim(extrema, scale=FALSE, prct=0.95)

Arguments

extrema	dyadic wavelet transform extrema (output of ext).
scale	when set, the wavelet transform at each scale will be plotted with the same scale.
prct	percentage critical value used for thresholding

Details

The distribution of extrema of dyadic wavelet transform at each scale is generated by bootstrap method, and the 95% critical value is used for thresholding the extrema of the signal.

Value

Structure containing

original	original signal.
extrema	trimmed extrema representation.
Sf	coarse resolution of signal.
maxresoln	number of decomposition scales.
np	size of signal.

References

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

See Also

mntrim, mrecons, ext.

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