window

Window function gateway

Syntax

window
w = window(fhandle,n)
w = window(fhandle,n,winopt)


Description

window opens the Window Designer app.

w = window(fhandle,n) returns the n-point window, specified by its function handle, fhandle, in column vector w. Function handles are window function names preceded by an @.

@barthannwin

@bartlett

@blackman

@blackmanharris

@bohmanwin

@chebwin

@flattopwin

@gausswin

@hamming

@hann

@kaiser

@nuttallwin

@parzenwin

@rectwin

@taylorwin

@triang

@tukeywin

Note

For chebwin, kaiser, and tukeywin, you must include a window parameter using the next syntax.

For more information on each window function and its option(s), refer to its reference page.

w = window(fhandle,n,winopt) returns the window specified by its function handle, fhandle, and its winopt value or sampling descriptor. For chebwin, kaiser, and tukeywin, you must enter a winopt value. For the other windows listed in the following table, winopt values are optional.

Window	winopt Description	winopt Value
blackman	window sampling	'periodic' or 'symmetric'
chebwin	sidelobe attenuation relative to mainlobe	numeric
flattopwin	window sampling	'periodic' or 'symmetric'
gausswin	alpha value (reciprocal of standard deviation)	numeric
hamming	window sampling	'periodic' or 'symmetric'
hann	window sampling	'periodic' or 'symmetric'
kaiser	beta value	numeric
taylorwin	1. number of sidelobes 2. maximum sidelobe level in dB relative to mainlobe peak	1. integer greater than or equal to 1 2. negative value
tukeywin	ratio of taper to constant sections	numeric

Examples

Blackman-Harris, Hamming, and Gaussian Windows

Create Blackman Harris, Hamming, and Gaussian windows and plot them in the same WVTool.

N = 65;
w = window(@blackmanharris,N);
w1 = window(@hamming,N); 
w2 = window(@gausswin,N,2.5); 
wvtool(w,w1,w2)

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.

Version History

Introduced before R2006a

R2024a: window supports C/C++ code generation

The window function supports C/C++ code generation. You must have MATLAB^® Coder™ to use this functionality.