Wavelet Analysis


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Documentation for package ‘rwavelet’ version 0.4.0

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aconv Convolution Tool for Two-Scale Transform.
BlockThresh 1d Wavelet Block thresholding
block_partition Construct 1d block partition
block_partition2d Construct 2d block partition
CircularShift Circular Shifting of a matrix/image,
cubelength Find length and dyadic length of square array.
CVlinear 2-Fold Cross Validation for linear estimator
DownDyadHi Hi-Pass Downsampling operator (periodized)
DownDyadLo Lo-Pass Downsampling operator (periodized)
dyad Index entire j-th dyad of 1-d wavelet xform
dyadlength Find length and dyadic length of array
FTWT2_PO 2-d tensor wavelet transform (periodized, orthogonal).
FWT2_PO 2-d MRA wavelet transform (periodized, orthogonal).
FWT2_TI 2-D Translation Invariant Forward Wavelet Transform.
FWT3_PO 3-d MRA wavelet transform (periodized, orthogonal).
FWT_PO Forward Wavelet Transform (periodized, orthogonal).
FWT_TI Translation Invariant Forward Wavelet Transform.
GWN Generation of Gaussian White Noise.
HardThresh Apply Hard Threshold.
iconvv Convolution Tool for Two-Scale Transform.
invblock_partition Inversion of the 1d block partition
invblock_partition2d Inversion of the 2d block partition
ITWT2_PO Inverse 2-d tensor wavelet transform (periodized, orthogonal).
IWT2_PO Inverse 2-d MRA wavelet transform (periodized, orthogonal).
IWT2_TI Invert 2-d Translation Invariant Wavelet Transform.
IWT3_PO Inverse 3-d MRA wavelet transform (periodized, orthogonal).
IWT_PO Inverse Wavelet Transform (periodized, orthogonal).
IWT_TI Invert translation invariant wavelet transform.
lshift Circular left shift of 1-d signal
MAD Median Absolute Deviation
MakeONFilter Generate Orthonormal QMF Filter for Wavelet Transform.
MakeSignal Make artificial signal.
MakeSignalNewb Make artificial 1-d signal.
MirrorFilt Apply (-1)^t modulation
packet Packet table indexing.
PlotSpikes Plot 1-d signal as baseline with series of spikes.
PlotWaveCoeff Spike-plot display of wavelet coefficients.
quadlength Find length and dyadic length of square matrix.
RaphNMR Nuclear magnetic resonance (NMR) signal.
repmat Replicate and tile an array.
rshift Circular right shift of 1-d signal
ShapeAsRow Make signal a row vector
SLphantom 3d Shepp-Logan phantom
SNR Signal/Noise ratio
SoftThresh Apply Soft Threshold.
UpDyadHi Hi-Pass Upsampling operator; periodized
UpDyadLo Lo-Pass Upsampling operator; periodized
UpSampleN Upsampling operator