ifft {signal}

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

fft

Examples

ifft(fft(1:4))