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make sure CWT tests vs precomupted coeffs are sensitive to the phase #440

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Dec 14, 2018
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make sure CWT tests vs precomupted coeffs are sensitive to the phase #440

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8 changes: 5 additions & 3 deletions pywt/tests/test_matlab_compatibility_cwt.py
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Original file line number Diff line number Diff line change
Expand Up @@ -99,7 +99,7 @@ def test_accuracy_precomputed_cwt():
# Keep this specific random seed to match the precomputed Matlab result.
rstate = np.random.RandomState(1234)
# has to be improved
epsilon = 1e-15
epsilon = 2e-15
epsilon32 = 1e-5
epsilon_psi = 1e-15
for wavelet in wavelets:
Expand Down Expand Up @@ -168,7 +168,8 @@ def _check_accuracy(data, w, scales, coefs, wavelet, epsilon):
coefs_pywt, freq = pywt.cwt(data, scales, w)

# calculate error measures
rms = np.real(np.sqrt(np.mean((coefs_pywt - coefs) ** 2)))
err = coefs_pywt - coefs
rms = np.real(np.sqrt(np.mean(np.conj(err) * err)))

msg = ('[RMS > EPSILON] for Scale: %s, Wavelet: %s, '
'Length: %d, rms=%.3g' % (scales, wavelet, len(data), rms))
Expand All @@ -180,7 +181,8 @@ def _check_accuracy_psi(w, psi, wavelet, epsilon):
psi_pywt, x = w.wavefun(length=1024)

# calculate error measures
rms = np.real(np.sqrt(np.mean((psi_pywt.flatten() - psi.flatten()) ** 2)))
err = psi_pywt.flatten() - psi.flatten()
rms = np.real(np.sqrt(np.mean(np.conj(err) * err)))

msg = ('[RMS > EPSILON] for Wavelet: %s, '
'rms=%.3g' % (wavelet, rms))
Expand Down