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from collections import OrderedDict |
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import attr |
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from so_magic.utils import Observer, Subject |
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from so_magic.data.variables.types import NominalVariableType |
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from so_magic.data.features.features import TrackingFeature |
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9
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@attr.s |
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class BaseFeatureSet: |
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features = attr.ib(init=True, default=[]) |
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def __len__(self): |
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return len(self.features) |
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def __getitem__(self, item): |
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return self.features[item] |
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def __iter__(self): |
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return iter(self.features) |
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@classmethod |
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def from_raw_extractors(cls, data): |
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"""Create a Feature for each of the lists in the input data (list). Inner lists must satisfy 0 < len(l)""" |
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return [TrackingFeature.from_callable(*args) for args in data] |
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class FeatureSet(BaseFeatureSet): |
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@property |
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def encoded(self): |
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for feature in self.features: |
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if str(feature.state) == 'encoded': |
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yield feature |
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@property |
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def not_encoded(self): |
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for feature in self.features: |
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if str(feature.state) != 'encoded': |
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yield feature |
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@property |
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def binnable(self): |
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for feature in self.features: |
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if not isinstance(feature.var_type, NominalVariableType): |
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yield feature |
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49
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@attr.s |
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class FeatureConfiguration(Observer): |
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variables = attr.ib(init=True) |
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_feature_vectors = attr.ib(default=attr.Factory( |
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lambda self: OrderedDict([(variable_dict['variable'], []) for variable_dict in self.variables]), |
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takes_self=True)) |
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@property |
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def valid_variables(self): |
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return [self.valid_encoding(x) for x in self.variables] |
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def valid_encoding(self, feature): |
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return feature.valid_encoding(self.datapoints, self._feature_vectors[feature.variable]) |
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def update(self, subject: Subject) -> None: |
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self._feature_vectors[subject.variable] = subject.columns |
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67
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@attr.s |
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class FeatureManager: |
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_feature_configuration = attr.ib(init=True) |
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subject = attr.ib(init=True, default=Subject([])) |
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@property |
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def feature_configuration(self): |
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return self._feature_configuration |
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@feature_configuration.setter |
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def feature_configuration(self, feature_configuration): |
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self._feature_configuration = FeatureConfiguration(feature_configuration) |
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boromir674 /
so-magic
