thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-12-11 17:02:25 +00:00
Code Issues Packages Projects Releases Wiki Activity
9c79ba3151
ClickHouse/docs/zh/sql-reference/aggregate-functions/reference/categoricalinformationvalue.md
benbiti 7d0430c0ec WIP update-aggregate-funcions-in-zh
2021-03-25 17:09:19 +08:00

382 B
Raw Blame History

toc_priority
250

categoricalInformationValue

对于每个类别计算 (P(tag = 1) - P(tag = 0))(log(P(tag = 1)) - log(P(tag = 0))) 。

categoricalInformationValue(category1, category2, ..., tag)

结果指示离散（分类）要素如何使用 [category1, category2, ...] 有助于使用学习模型预测tag的值。