signal (version 0.7-6)

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

# NOT RUN {
ifft(fft(1:4))
# }