Python 中是否提供 H2O 目标均值编码？

Question

我注意到 H2O 已经发布了目标均值编码

http://docs.h2o.ai/h2o/latest-stable/h2o-docs/data-munging/target-encoding.html

它只附带一个 R 代码示例。有人有 Python 示例吗？

Answer 1

像这样：

from h2o.targetencoder import TargetEncoder

# Fit target encoding on training data
targetEncoder = TargetEncoder(x= ["addr_state", "purpose"], y = "bad_loan", fold_column = "cv_fold_te")
targetEncoder.fit(ext_train)

但这需要至少 3.22 版本

这是一个示例链接：https://github.com/h2oai/h2o-tutorials/blob/78c3766741e8cbbbd8db04d54b1e34f678b85310/best-practices/feature-engineering/feature_engineering.ipynb

以及代码本身的链接：https://github.com/h2oai/h2o-3/blob/master/h2o-py/h2o/targetencoder.py