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wavelets (version 0.2-8)

A package of functions for computing wavelet filters, wavelet transforms and multiresolution analyses

Description

This package contains functions for computing and plotting discrete wavelet transforms (DWT) and maximal overlap discrete wavelet transforms (MODWT), as well as their inverses. Additionally, it contains functionality for computing and plotting wavelet transform filters that are used in the above decompositions as well as multiresolution analyses.

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Version

Install

install.packages('wavelets')

Monthly Downloads

4,076

Version

0.2-8

License

GPL (>= 2)

Maintainer

Eric Aldrich

Last Published

September 5th, 2012

Functions in wavelets (0.2-8)

mra-class

Multiresolution Analysis Object
dwt-class

Discrete Wavelet Transform Object
align

Align Wavelet Transform Coefficients
extend.series

Extend a Time Series
dwt

Discrete Wavelet Transform
dwt.forward

Discrete Wavelet Transform and Maximal Overlap Discrete Wavelet Tranform Forward and Backward Pyramid Algorithm
ecg

Electrocardiogram Data
wt.filter.shift

Wavelet Transform Filter Phase Shift
figure98.wt.filter

Plot a DWT Wavelet or Scaling Filter for Specific Levels.
modwt-class

Maximal Overlap Discrete Wavelet Transform Object
modwt

Maximal Overlap Discrete Wavelet Transform
imodwt

Inverse Maximal Overlap Discrete Wavelet Transform
mra

Multiresolution Analysis
ocean

Vertical Ocean Sheer Measurements
plot.dwt

Plot DWT Coefficients
plot.dwt.multiple

Plot Multiple DWT Objects
plot.modwt

Plot MODWT Coefficients
nile

Yearly Nile River Minima
stackplot

Stacked Plotting
wt.filter-class

Wavelet Transform Filter Object
idwt

Inverse Discrete Wavelet Transform
scalingshift.dwt

Find Circular Shift of DWT Scaling Coefficients
wt.filter.equivalent

Equivalent Wavelet Transform Filter
wt.filter.qmf

Quadrature Mirror Filter
waveletshift.dwt

Find Circular Shift of DWT Wavelet Coefficients
wt.filter

Wavelet Transform Filter
squaredgain.wt.filter

Plot Squared Gain Function for Wavelet Filter
figure108.wt.filter

Plot Multiple DWT Wavelet or Scaling Filters
subtidal

Subtidal Sea Level Measurements