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Fix bug for calculation of partition and partition entropy coefficient #108

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Fix bug for calculation of partition and partition entropy coefficient #108

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4 changes: 2 additions & 2 deletions fcmeans/main.py
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Original file line number Diff line number Diff line change
Expand Up @@ -198,15 +198,15 @@ def partition_coefficient(self) -> float:
[this paper](https://doi.org/10.1016/0098-3004(84)90020-7).
"""
if self._is_trained():
return np.mean(self.u**2)
return np.sum(np.mean(self.u**2, axis=0))
raise ReferenceError(
"You need to train the model. Run `.fit()` method to this."
)

@property
def partition_entropy_coefficient(self):
if self._is_trained():
return -np.mean(self.u * np.log2(self.u))
return -np.sum(np.mean(self.u * np.log2(self.u), axis=0))
raise ReferenceError(
"You need to train the model. Run `.fit()` method to this."
)