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python Programming Glossary: np.fft.ffthow to extract frequency associated with fft values in python http://stackoverflow.com/questions/3694918/how-to-extract-frequency-associated-with-fft-values-in-python values python numpy fft share improve this question np.fft.fftfreq tells you the frequencies associated with the coefficients.. import numpy as np x np.array 1 2 1 0 1 2 1 0 w np.fft.fft x freqs np.fft.fftfreq len x for coef freq in zip w freqs if.. as np x np.array 1 2 1 0 1 2 1 0 w np.fft.fft x freqs np.fft.fftfreq len x for coef freq in zip w freqs if coef print ' c 6 exp..
some Numpy functions return ndarray instead of my subclass http://stackoverflow.com/questions/6190859/some-numpy-functions-return-ndarray-instead-of-my-subclass about these s5 log10 s type s5 type 'numpy.ndarray' s6 np.fft.fft s type s6 type 'numpy.ndarray' looking into the code of fft..
Convolution computations in Numpy/Scipy http://stackoverflow.com/questions/6855169/convolution-computations-in-numpy-scipy np is numpy sp is scipy def mix1 signal1 signal2 spec1 np.fft.fft signal1 axis 1 spec2 np.fft.fft signal2 axis 1 return np.fft.ifft.. mix1 signal1 signal2 spec1 np.fft.fft signal1 axis 1 spec2 np.fft.fft signal2 axis 1 return np.fft.ifft spec1 spec2 axis 1 Both signals.. scipy.signal N 4680 C 6 def mix1 signal1 signal2 spec1 np.fft.fft signal1 axis 1 spec2 np.fft.fft signal2 axis 1 return np.fft.ifft..
FFT in Matlab and numpy / scipy give different results http://stackoverflow.com/questions/8680909/fft-in-matlab-and-numpy-scipy-give-different-results 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 1. 0. 0. 0. 0. 0. 0. np.fft.fft Msig.transpose array 0.0 0.00000000e 00j 0.0 0.00000000e 00j.. The best i can get if i mess with parameters axis etc. of np.fft.fft np.fft.fft2 np.fft.fftn is same values but shifted. unfortunately.. can get if i mess with parameters axis etc. of np.fft.fft np.fft.fft2 np.fft.fftn is same values but shifted. unfortunately manual..
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