represents a Parzen window function of x.
- ParzenWindow is a window function typically used for antialiasing and resampling.
- Window functions are used in applications where data is processed in short segments and have a smoothing effect by gradually tapering data values to zero at the ends of each segment.
- ParzenWindow[x] is equal to .
- ParzenWindow automatically threads over lists.
Examplesopen allclose all
Basic Examples (3)
Decrease the size of an image by a factor of 5 using the Parzen method:
Create a moving-average filter of length 21:
Taper the filter using a Parzen window:
Log-magnitude plot of the power spectra of the filters:
Use a window specification to calculate sample PowerSpectralDensity:
Compare to spectral density calculated without a windowing function:
The plot shows that window smooths the spectral density:
Compare to the theoretical spectral density of the process:
Use a window specification for time series estimation:
Wolfram Research (2012), ParzenWindow, Wolfram Language function, https://reference.wolfram.com/language/ref/ParzenWindow.html.
Wolfram Language. 2012. "ParzenWindow." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/ParzenWindow.html.
Wolfram Language. (2012). ParzenWindow. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/ParzenWindow.html