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Fix normalization & standard. columnwise

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This commit is contained in:
Ricardo Montañana Gómez
2021-04-15 00:30:16 +02:00
parent 59f59e6c4f
commit 84795b4c43
4 changed files with 109 additions and 22 deletions
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26
experimentation/Sets.py
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@@ -35,23 +35,39 @@ class Dataset_Base:
"""
pass
def normalize(self, data: np.array) -> np.array:
@staticmethod
def normalize(data: np.array) -> np.array:
min_data = data.min()
return (data - min_data) / (data.max() - min_data)
def standardize(self, data: np.array) -> np.array:
@staticmethod
def normalize_rows(data: np.array) -> np.array:
res = data.copy()
for col in range(res.shape[1]):
res[:, col] = Dataset_Base.normalize(res[:, col])
return res
@staticmethod
def standardize(data: np.array) -> np.array:
return (data - data.mean()) / data.std()
@staticmethod
def standardize_rows(data: np.array) -> np.array:
res = data.copy()
for col in range(res.shape[1]):
res[:, col] = Dataset_Base.standardize(res[:, col])
return res
def get_params(self) -> str:
return f"normalize={self._normalize}, standardize={self._standardize}"
def post_process(self, X: np.array, y: np.array) -> tdataset:
if self._standardize and self._normalize:
X = self.standardize(self.normalize(X))
X = self.standardize_rows(self.normalize_rows(X))
elif self._standardize:
X = self.standardize(X)
X = self.standardize_rows(X)
elif self._normalize:
X = self.normalize(X)
X = self.normalize_rows(X)
return X, y
def __iter__(self) -> Diterator: