optuna.distributions.check_distribution_compatibility

optuna.distributions.check_distribution_compatibility(dist_old: optuna.distributions.BaseDistribution, dist_new: optuna.distributions.BaseDistribution) → None

A function to check compatibility of two distributions.

Note that this method is not supposed to be called by library users.

Parameters

• dist_old – A distribution previously recorded in storage.

• dist_new – A distribution newly added to storage.

Returns

True denotes given distributions are compatible. Otherwise, they are not.

Raises

ValueError – If different distribution kinds are set to dist_old and dist_new, or dist_old.choices doesn’t match dist_new.choices for CategoricalDistribution.