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e1071

hanning.window

Computes the Coefficients of a Hanning Window.

Description

The filter coefficients w(i) of a Hanning window of length n are computed according to the formula

w(i) = 0.5 - 0.5*cos(2*pi*i/(n-1))

Usage

hanning.window(n)

Arguments

n

The length of the window.

Value

A vector containing the filter coefficients.

Author(s)

Andreas Weingessel

References

For a definition of the Hanning window, see for example
Alan V. Oppenheim and Roland W. Schafer: "Discrete-Time Signal Processing", Prentice-Hall, 1989.

See Also

stft, hamming.window

Examples

hanning.window(10)

x<-rnorm(500)
y<-stft(x, wtype="hanning.window")
plot(y)
e1071

Misc Functions of the Department of Statistics, Probability Theory Group (Formerly: E1071), TU Wien

v1.7-11
GPL-2 | GPL-3
Authors
David Meyer [aut, cre], Evgenia Dimitriadou [aut, cph], Kurt Hornik [aut], Andreas Weingessel [aut], Friedrich Leisch [aut], Chih-Chung Chang [ctb, cph] (libsvm C++-code), Chih-Chen Lin [ctb, cph] (libsvm C++-code)
Initial release

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