Package index

Fourier transforms

fft_c2c() fft_r2c() fft_c2r()

Discrete Fourier transforms

Cosine and sine transforms

fft_dct() fft_dst()

Discrete cosine and sine transforms

Lengths, frequencies and shifts

fft_next_len() fft_prev_len()

Fast transform lengths

fft_freq() fft_rfreq()

Sample frequencies

fft_shift() fft_ishift()

Shift the zero frequency to the centre

Threads

fft_workers() with_fft_workers() local_fft_workers()

Threads per transform

Compatibility with stats

fft_stats() mvfft_stats()

Drop-in replacements for stats::fft() and stats::mvfft()

Package information

zufft_info()

Information about the zufft build

zufft zufft-package

zufft: Fast Fourier, Cosine and Sine Transforms