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[Fix] corrected expected_chisquare by adding the number of priors

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PiaLJP 2025-10-20 17:34:41 +02:00
commit f682ad463f
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pyerrors/fits.py
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@ -472,7 +472,7 @@ def least_squares(x, y, func, priors=None, silent=False, **kwargs):
hat_vector = prepare_hat_matrix()
A = W @ hat_vector
P_phi = A @ np.linalg.pinv(A.T @ A) @ A.T
expected_chisquare = np.trace((np.identity(y_all.shape[-1]) - P_phi) @ W @ cov @ W)
expected_chisquare = np.trace((np.identity(y_all.shape[-1]) - P_phi) @ W @ cov @ W) + len(loc_priors)
output.chisquare_by_expected_chisquare = output.chisquare / expected_chisquare
if not silent:
print('chisquare/expected_chisquare:', output.chisquare_by_expected_chisquare)