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python Programming Glossary: coefhow to extract frequency associated with fft values in python http://stackoverflow.com/questions/3694918/how-to-extract-frequency-associated-with-fft-values-in-python 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.. 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 2 pi i t f '.format.. freqs np.fft.fftfreq len x for coef freq in zip w freqs if coef print ' c 6 exp 2 pi i t f '.format c coef f freq # 8 0j exp..
How can I generate a note or chord in python? http://stackoverflow.com/questions/5173795/how-can-i-generate-a-note-or-chord-in-python math import wave import struct def synthComplex freq 440 coef 1 datasize 10000 fname test.wav frate 44100.00 amp 8000.0 sine_list.. range datasize samp 0 for k in range len freq samp samp coef k math.sin 2 math.pi freq k x frate sine_list.append samp wav_file..
Python Multiple Linear Regression using OLS code with specific data? http://stackoverflow.com/questions/7458391/python-multiple-linear-regression-using-ols-code-with-specific-data 'x2' 'x3' 'x4' Step 2 Get specific metrics To print the coefficients print m.b To print the coefficients p values print.. metrics To print the coefficients print m.b To print the coefficients p values print m.p y 29.4 29.9 31.4 32.8 33.6 34.6.. using OLS self.estimate def estimate self # estimating coefficients and basic stats self.inv_xx inv dot self.x.T self.x..
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