Last chance! 50% off unlimited learning
Sale ends in
see title
FFT(x, ..., plan, inverse=FALSE)
IFFT(x, ..., plan, scale=TRUE)
DCT(x, ..., plan, type=1, inverse=FALSE)
IDCT(x, ..., plan, type=1, scale=TRUE)
(complex) vector to process
ignored
FFTW plan, can be missing
perform inverse transform, provided for fft compatibility.
scale results
type of DCT
Olaf Mersmann <olafm@statistik.uni-dortmund.de>
planFFT
n <- 2**16
x <- rnorm(n)
p <- planFFT(n)
y <- FFT(x, plan=p)
Mod(x - IFFT(FFT(x)))
Run the code above in your browser using DataLab