This is documentation for an old release of Scikit-learn (version 0.18). Try the latest stable release (version 1.6) or development (unstable) versions.

sklearn.exceptions.EfficiencyWarning

class sklearn.exceptions.EfficiencyWarning

Warning used to notify the user of inefficient computation.

This warning notifies the user that the efficiency may not be optimal due to some reason which may be included as a part of the warning message. This may be subclassed into a more specific Warning class.

New in version 0.18.