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ifft

Inverse FFT

Description

Matlab/Octave-compatible inverse FFT.

Usage

ifft(x)

Arguments

x

the input array.

Details

It uses fft from the stats package as follows:

fft(x, inverse = TRUE)/length(x)

Note that it does not attempt to make the results real.

Value

The inverse FFT of the input, the same length as x.

Author(s)

Tom Short

See Also

Examples

ifft(fft(1:4))
signal

Signal Processing

v0.7-6
GPL-2
Authors
Uwe Ligges [aut, cre] (new maintainer), Tom Short [aut] (port to R), Paul Kienzle [aut] (majority of the original sources), Sarah Schnackenberg [ctb] (various test cases and bug fixes), David Billinghurst [ctb], Hans-Werner Borchers [ctb], Andre Carezia [ctb], Pascal Dupuis [ctb], John W. Eaton [ctb], E. Farhi [ctb], Kai Habel [ctb], Kurt Hornik [ctb], Sebastian Krey [ctb], Bill Lash [ctb], Friedrich Leisch [ctb], Olaf Mersmann [ctb], Paulo Neis [ctb], Jaakko Ruohio [ctb], Julius O. Smith III [ctb], Doug Stewart [ctb], Andreas Weingessel [ctb]
Initial release
2015-07-29

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