[Solved] Error: __init__() got an unexpected keyword argument ‘n_splits’

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You are mixing up two different modules.

Before 0.18, cross_validation was used for ShuffleSplit. In that, n_splits was not present. n was used to define the number of splits

But since you have updated to 0.18 now, cross_validation and grid_search has been deprecated in favor of model_selection.

This is mentioned in docs here, and these modules will be removed from version 0.20

So instead of this:

from sklearn.cross_validation import ShuffleSplit
from sklearn.cross_validation import train_test_split

Do this:

from sklearn.model_selection import ShuffleSplit
fro

m sklearn.model_selection import train_test_split

Then you can use n_splits.

cv = ShuffleSplit(n_splits = 10, test_size = 0.2, random_state = 0)

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solved Error: __init__() got an unexpected keyword argument ‘n_splits’