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Fix NumPy scalar extraction in BIC scores #263

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Merged
jdramsey merged 1 commit into from
May 22, 2026
Merged

Fix NumPy scalar extraction in BIC scores #263

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4 changes: 2 additions & 2 deletions causallearn/score/LocalScoreFunction.py
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Original file line number Diff line number Diff line change
Expand Up @@ -84,7 +84,7 @@ def local_score_BIC(Data: ndarray, i: int, PAi: List[int], parameters=None) -> f
XX_inv = np.linalg.inv(XX)
except np.linalg.LinAlgError:
XX_inv = np.linalg.pinv(XX)
sigma = float(cov[i, i] - yX @ XX_inv @ yX.T)
sigma = float((cov[i, i] - yX @ XX_inv @ yX.T).item())

if sigma <= 0:
sigma = np.finfo(float).eps
Expand Down Expand Up @@ -137,7 +137,7 @@ def local_score_BIC_from_cov(
XX_inv = np.linalg.inv(XX)
except np.linalg.LinAlgError:
XX_inv = np.linalg.pinv(XX)
sigma = float(cov[i, i] - yX @ XX_inv @ yX.T)
sigma = float((cov[i, i] - yX @ XX_inv @ yX.T).item())

if sigma <= 0:
sigma = np.finfo(float).eps
Expand Down
2 changes: 1 addition & 1 deletion causallearn/search/ScoreBased/DGES.py
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Original file line number Diff line number Diff line change
Expand Up @@ -110,7 +110,7 @@ def local_score_BIC_from_cov_deterministic(Data, i, PAi, parameters=None):
XX_inv = np.linalg.inv(XX)
except np.linalg.LinAlgError:
XX_inv = np.linalg.pinv(XX)
sigma = float(cov[i, i] - yX @ XX_inv @ yX.T)
sigma = float((cov[i, i] - yX @ XX_inv @ yX.T).item())
if sigma <= 0:
sigma = 0.0

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