回答編集履歴
2
例の変更
test
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@@ -6,15 +6,15 @@
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>>> import numpy as np
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>>> hoge = np.array([1., 2., 3.])
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>>> hoge = np.array([-1., -2., -3.])
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>>> hoge
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array([
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array([-1., -2., -3.])
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>>> -hoge
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array([
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array([ 1., 2., 3.])
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```
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1
追記
test
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@@ -21,3 +21,15 @@
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...試してみればすぐ解決したのでは。
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---
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[sklearn.model_selection.cross_val_score](http://scikit-learn.org/stable/modules/generated/sklearn.model_selection.cross_val_score.html)
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> **Returns:**
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**scores :** array of float, shape=(len(list(cv)),)
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Array of scores of the estimator for each run of the cross validation.
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