NotFittedError is an exception in the Python scikit-learn library (sklearn) that is raised when trying to access an attribute or method from an estimator that has not been fitted with data yet. This error occurs when attempting to use the model for predictions or accessing properties such as coefficients, scores, or feature importance before it has been trained on any data. It serves as a reminder to fit the estimator with data- usually done using the "fit" method- before using it for predictions or to access other properties.
Python NotFittedError - 30 examples found. These are the top rated real world Python examples of sklearn.exceptions.NotFittedError extracted from open source projects. You can rate examples to help us improve the quality of examples.