Using scikit-learn RandomizedSearchCV and cross_val_score to create a Nested CV loop (model selection and hyperparameter tuning).

The data used in the notebook, Customer-Churn-Records.csv can be found in kaggle.

• What is nested cross-validation for Machine Learning
• Nested Cross-Validation for Machine Learning with Python
• My notes about CV and Nested CV

• RandomizedSearchCV
• cross_val_score