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Please cite us if you use the software. Read more in the User Guide. If scoring represents a single score, one can use:. If scoring reprents multiple scores, one can use:. See Specifying cross dowel toolstation worksheet metrics for evaluation cross dowel toolstation worksheet an example. CV splitter. In all other cases, KFold is used.

Refer User Guide for the various cross-validation strategies that can be used here. Changed in version 0. Number of jobs to run in parallel. Training the estimator and computing the score are parallelized over the cross-validation splits. None means 1 unless in a joblib. See Glossary for more details. Controls the number of jobs that get dispatched during parallel execution.

Reducing this number can be useful to avoid an explosion of memory consumption when more jobs get dispatched than CPUs can process. This parameter can be:. None, in which case all the jobs are immediately toolstaion and spawned. Use this for lightweight and fast-running jobs, to avoid delays due to on-demand spawning of the jobs. Whether to include train scores. However computing the scores on the training set can be computationally expensive and is not strictly required to select the parameters that yield the best generalization performance.

Value to assign to the score if an error occurs in estimator fitting. If a numeric value is given, FitFailedWarning is raised. The possible keys for this dict are:. The score array for test scores on each cv split. The score array for train scores on each cv split.

The time for scoring the estimator on the test set for each cv split. The estimator objects for each cv split. Toggle Menu. Prev Up Next. Can be for example a list, or cross dowel toolstation worksheet array. If scoring represents a single score, one can use: a single cross dowel toolstation worksheet see The scoring parameter: defining model evaluation rules ; a callable see Defining your scoring strategy from metric functions that returns a single value.

If scoring reprents multiple scores, cross dowel toolstation worksheet can workssheet a dpwel or tuple of unique strings; a callable returning a dictionary where the keys are the metric names and the values are the metric scores; a dictionary with metric names as keys and callables a values. Possible inputs for cv are: None, to use the default M10 Cross Dowel Barrel Nuts In dowsl cross validation, int, to cross dowel toolstation worksheet the number of folds in a Stratified KFoldCV splitterAn iterable yielding train, test splits as arrays of indices.

Examples using sklearn.

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