wavsupport
Wavelet support
Description
Examples
Support of Haar Wavelet
Return the lower bound and upper bound of the support for the Haar wavelet.
[LB,UB] = wavsupport('haar')
LB = -0.5000
UB = 0.5000
The length of the Haar wavelet filter is 2. Compare LB
and UB
to the lower and upper bounds for orthogonal and biorthogonal wavelets (type 1 and type 2).
LF = 2; LowerBound = -0.5*(LF-1)
LowerBound = -0.5000
UpperBound = 0.5*(LF-1)
UpperBound = 0.5000
Support of Complex-Valued Gaussian Wavelet
Return the lower bound and upper bound of the support for the complex-valued Gaussian wavelet.
[LB,UB] = wavsupport("cgau3")
LB = -5
UB = 5
Input Arguments
wname
— Wavelet
character vector | string scalar
Wavelet, specified by a character vector or string scalar. The wavelet
must be recognized by wavemngr
.
Example: "db4"
Data Types: char
| string
Output Arguments
LB,UB
— Wavelet support
scalars
Wavelet support, returned as scalars. LB
and
UB
are the lower and upper bounds, respectively, of
the support.
For real-valued wavelets with and without scaling functions and complex-valued wavelets without scaling functions (wavelets type 3,4, and 5), the bounds indicate the effective support of the wavelet.
For orthogonal and biorthogonal wavelets (type 1 and type 2 respectively), the lower and upper bounds are
LB = -0.5*(LF-1)
andUB = 0.5*(LF-1)
, where LF is the length of the wavelet filter.
Data Types: double
B
— Support of the wavelet
vector
Support of the wavelet, returned as a vector: B =
[
. LB,UB
]
Data Types: double
Version History
Introduced in R2010b
See Also
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