symwavf

R2026b

Symlet wavelet filter

Syntax

f = symwavf(wname)

Description

f = symwavf(wname) returns the scaling filter associated with the Symlet wavelet specified by wname. f is a real-valued vector.

Examples

Scaling Filter Associated With the Symlet Wavelet

Specify the order 4 Symlet wavelet.

wname = 'sym4';

Compute the corresponding scaling filter.

f = symwavf(wname);
f'

ans = 8×1

    0.0228
   -0.0089
   -0.0702
    0.2106
    0.5683
    0.3519
   -0.0210
   -0.0536

Input Arguments

wname — Symlet wavelet

'symN'

Symlet wavelet with N vanishing moments, where N is a positive integer in the closed interval [1, 45].

Extended Capabilities

Thread-Based Environment

Run code in the background using MATLAB® backgroundPool or accelerate code with Parallel Computing Toolbox™ ThreadPool.

The symwavf function fully supports thread-based environments. For more information, see Run MATLAB Functions in Thread-Based Environment.

Version History

Introduced before R2006a

R2026b: Use thread-based environments

You can use symwavf in thread-based environments. For more information, see Run MATLAB Functions in Thread-Based Environment.