Fourier transforms (scipy.fftpack)¶
Fast Fourier transforms¶
| fft(x[, n, axis, overwrite_x]) | Return discrete Fourier transform of arbitrary type sequence x. |
| ifft(x[, n, axis, overwrite_x]) | ifft(x, n=None, axis=-1, overwrite_x=0) -> y |
| fftn(x[, shape, axes, overwrite_x]) | fftn(x, shape=None, axes=None, overwrite_x=0) -> y |
| ifftn(x[, shape, axes, overwrite_x]) | Return inverse multi-dimensional discrete Fourier transform of |
| fft2(x[, shape, axes, overwrite_x]) | 2-D discrete Fourier transform. |
| ifft2(x[, shape, axes, overwrite_x]) | ifft2(x, shape=None, axes=(-2,-1), overwrite_x=0) -> y |
| rfft(x[, n, axis, overwrite_x]) | rfft(x, n=None, axis=-1, overwrite_x=0) -> y |
| irfft(x[, n, axis, overwrite_x]) | irfft(x, n=None, axis=-1, overwrite_x=0) -> y |
Differential and pseudo-differential operators¶
| diff(x[, order, period, _cache]) | diff(x, order=1, period=2*pi) -> y |
| tilbert(x, h[, period, _cache]) | tilbert(x, h, period=2*pi) -> y |
| itilbert(x, h[, period, _cache]) | itilbert(x, h, period=2*pi) -> y |
| hilbert(x[, _cache]) | hilbert(x) -> y |
| ihilbert(x) | ihilbert(x) -> y |
| cs_diff(x, a, b[, period, _cache]) | cs_diff(x, a, b, period=2*pi) -> y |
| sc_diff(x, a, b[, period, _cache]) | Return (a,b)-sinh/cosh pseudo-derivative of a periodic sequence x. |
| ss_diff(x, a, b[, period, _cache]) | ss_diff(x, a, b, period=2*pi) -> y |
| cc_diff(x, a, b[, period, _cache]) | cc_diff(x, a, b, period=2*pi) -> y |
| shift(x, a[, period, _cache]) | shift(x, a, period=2*pi) -> y |
Helper functions¶
| fftshift(x[, axes]) | Shift the zero-frequency component to the center of the spectrum. |
| ifftshift(x[, axes]) | The inverse of fftshift. |
| dftfreq | |
| rfftfreq(n[, d]) | rfftfreq(n, d=1.0) -> f |
Convolutions (scipy.fftpack.convolve)¶
| convolve | convolve - Function signature: |
| convolve_z | convolve_z - Function signature: |
| init_convolution_kernel | init_convolution_kernel - Function signature: |
| destroy_convolve_cache | destroy_convolve_cache - Function signature: |
Other (scipy.fftpack._fftpack)¶
| drfft | drfft - Function signature: |
| zfft | zfft - Function signature: |
| zrfft | zrfft - Function signature: |
| zfftnd | zfftnd - Function signature: |
| destroy_drfft_cache | destroy_drfft_cache - Function signature: |
| destroy_zfft_cache | destroy_zfft_cache - Function signature: |
| destroy_zfftnd_cache | destroy_zfftnd_cache - Function signature: |
