How can I create custom estimators in scikit-learn?

How can I create custom estimators in scikit-learn?

To create a custom estimator in scikit-learn, you need to define a class that implements the fit and predict methods.

Can you give me a simple example of a custom estimator?

Sure! Here's a basic example of a custom estimator that doubles the input values.

What methods do I need to implement in my custom estimator?

You should implement at least the fit and predict methods. Optionally, you can also implement score and get_params.

How do I test my custom estimator once it's created?

You can test it by using it in a pipeline or directly with sample data to ensure it behaves as expected.