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non-mean target encoding #245

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@EmilHvitfeldt

This would naturally cover quantile encoding. Maybe be included in the upcoming analytical version.

I have seen people use a lot of interesting things like min, max, nunique. https://www.kaggle.com/competitions/playground-series-s4e12/discussion/554328

another example: https://www.kaggle.com/code/cdeotte/first-place-single-model-lb-38-81#Feature-Engineer-Columns

this would be easy to do without shrinkage, but I haven't spend enough time thinking about how it would work in that scenario

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