Categorical Encoding

Feature-engine’s categorical encoders replace variable strings by estimated or arbitrary numbers.

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Summary of Feature-engine’s encoders main characteristics

Feature-engine’s categorical encoders work only with categorical variables by default. From version 1.1.0, you have the option to set the parameter ignore_format to True, and make the transformers also accept numerical variables as input.

Other categorical encoding libraries

For additional categorical encoding transformations, visit the open-source package Category encoders.