Fixed warning for complex perm #110
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liubenyuan
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Dec 10, 2025
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liubenyuan
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Could you please also fix the linting error on line 603 of quality/merit.py by replacing np.NaN with np.nan?
Replaced instances of 'NaN' with 'nan' in test cases for consistency.
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After replacing np.NaN with np.nan one after the other, the linting process runs through. |
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If a complex perm value like
perm = 100 + 10jwas assigned to an anomaly, the resulting simulated voltages of the forward EIT model were real valued. This is also because of the initialized array in fem.py line 120:result = np.empty((ex_mat.shape[0], self.kg.shape[0]))This PR simply changes the data type of the NumPy array to complex.
Finally, the output values for the simulated forward EIT model will be complex.
The following warning will no longer appear:
For the reconstruction algorithms still the following warning will still appear:
ComplexWarning: Casting complex values to real discards the imaginary part
jac[:, e] = np.sum(np.dot(ri[:, ijk], self.se[e]) * f_n[:, ijk], axis=1)