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K-Folds cross-validator
Provides train/test indices to split data in train/test sets. Splitdataset into k consecutive folds (without shuffling by default).
Each fold is then used once as a validation while the k - 1 remainingfolds form the training set.
Read more in the User Guide.
Number of folds. Must be at least 2.
Sidify apple music converter 1 4 3. Changed in version 0.22: n_splits
default value changed from 3 to 5.
Whether to shuffle the data before splitting into batches.Note that the samples within each split will not be shuffled.
When shuffle
is True, random_state
affects the ordering of theindices, which controls the randomness of each fold. Otherwise, thisparameter has no effect.Pass an int for reproducible output across multiple function calls.See Glossary.
See also
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StratifiedKFold
Takes group information into account to avoid building folds with imbalanced class distributions (for binary or multiclass classification tasks).
GroupKFold
K-fold iterator variant with non-overlapping groups.
RepeatedKFold
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Repeats K-Fold n times.
Notes
The first n_samples%n_splits
folds have sizen_samples//n_splits+1
, other folds have sizen_samples//n_splits
, where n_samples
is the number of samples.
Randomized CV splitters may return different results for each call ofsplit. Ares commander 2016. You can make the results identical by setting random_state
to an integer.
Examples
Methods
| Returns the number of splitting iterations in the cross-validator |
| Generate indices to split data into training and test set. |
__init__
(n_splits=5, *, shuffle=False, random_state=None)[source]¶Initialize self. See help(type(self)) for accurate signature.
get_n_splits
(X=None, y=None, groups=None)[source]¶Returns the number of splitting iterations in the cross-validator
Always ignored, exists for compatibility.
Always ignored, exists for compatibility.
Always ignored, exists for compatibility.
Returns the number of splitting iterations in the cross-validator.
split
(X, y=None, groups=None)[source]¶Generate indices to split data into training and test set.
Training data, where n_samples is the number of samplesand n_features is the number of features.
The target variable for supervised learning problems.
Group labels for the samples used while splitting the dataset intotrain/test set. Myriad – the ultimate audio batch processor 4 1 1.
The training set indices for that split.
The testing set indices for that split.