BlockThresh             1d Wavelet Block thresholding
CVlinear                2-Fold Cross Validation for linear estimator
CircularShift           Circular Shifting of a matrix/image,
DownDyadHi              Hi-Pass Downsampling operator (periodized)
DownDyadLo              Lo-Pass Downsampling operator (periodized)
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.
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.
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
PlotSpikes              Plot 1-d signal as baseline with series of
                        spikes.
PlotWaveCoeff           Spike-plot display of wavelet coefficients.
RaphNMR                 Nuclear magnetic resonance (NMR) signal.
SLphantom               3d Shepp-Logan phantom
SNR                     Signal/Noise ratio
ShapeAsRow              Make signal a row vector
SoftThresh              Apply Soft Threshold.
UpDyadHi                Hi-Pass Upsampling operator; periodized
UpDyadLo                Lo-Pass Upsampling operator; periodized
UpSampleN               Upsampling operator
aconv                   Convolution Tool for Two-Scale Transform.
block_partition         Construct 1d block partition
block_partition2d       Construct 2d block partition
cubelength              Find length and dyadic length of square array.
dyad                    Index entire j-th dyad of 1-d wavelet xform
dyadlength              Find length and dyadic length of array
iconvv                  Convolution Tool for Two-Scale Transform.
invblock_partition      Inversion of the 1d block partition
invblock_partition2d    Inversion of the 2d block partition
lshift                  Circular left shift of 1-d signal
packet                  Packet table indexing.
quadlength              Find length and dyadic length of square matrix.
repmat                  Replicate and tile an array.
rshift                  Circular right shift of 1-d signal
