ifft | R Documentation |
Matlab/Octave-compatible inverse FFT.
ifft(x)
x |
the input array. |
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.
The inverse FFT of the input, the same length as x
.
Tom Short
fft
ifft(fft(1:4))
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