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Want more scikit-learn tips? Check out this playlist: ruclips.net/p/PL5-da3qGB5ID7YYAqireYEew2mWVvgmj6
We add .values just to make it more speedy so that it doesn't have to convert to numpy array by itself.
That's fine, though that means you won't be able to access columns by name with ColumnTransformer, and starting in scikit-learn 1.0 (coming soon) you will miss out on some additional functionality with respect to feature names.
Want more scikit-learn tips? Check out this playlist: ruclips.net/p/PL5-da3qGB5ID7YYAqireYEew2mWVvgmj6
We add .values just to make it more speedy so that it doesn't have to convert to numpy array by itself.
That's fine, though that means you won't be able to access columns by name with ColumnTransformer, and starting in scikit-learn 1.0 (coming soon) you will miss out on some additional functionality with respect to feature names.