optuna.study.load_study(study_name: str, storage: Union[str, storages.BaseStorage], sampler: samplers.BaseSampler = None, pruner: pruners.BasePruner = None) → Study[source]

Load the existing Study that has the specified name.

Parameters
• study_name – Study’s name. Each study has a unique name as an identifier.

• storage – Database URL such as sqlite:///example.db. Please see also the documentation of create_study() for further details.

• sampler – A sampler object that implements background algorithm for value suggestion. If None is specified, TPESampler is used as the default. See also samplers.

• pruner – A pruner object that decides early stopping of unpromising trials. If None is specified, MedianPruner is used as the default. See also pruners.