signal (version 0.5)

ifft: Inverse FFT

Description

Matlab/Octave-compatible inverse FFT.

Usage

ifft(x)

Arguments

x

the input array.

Value

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

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.

See Also

fft

Examples

ifft(fft(1:4))