25 lines
641 B
Python
25 lines
641 B
Python
"""
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Common utilities for testing model selection.
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"""
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import numpy as np
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from sklearn.model_selection import KFold
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class OneTimeSplitter:
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"""A wrapper to make KFold single entry cv iterator"""
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def __init__(self, n_splits=4, n_samples=99):
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self.n_splits = n_splits
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self.n_samples = n_samples
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self.indices = iter(KFold(n_splits=n_splits).split(np.ones(n_samples)))
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def split(self, X=None, y=None, groups=None):
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"""Split can be called only once"""
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for index in self.indices:
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yield index
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def get_n_splits(self, X=None, y=None, groups=None):
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return self.n_splits
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