ClickHouse/docs/zh/sql-reference/aggregate-functions/reference/kurtpop.md

27 lines
458 B
Markdown
Raw Normal View History

2021-02-02 12:00:41 +00:00
---
2022-04-10 23:08:18 +00:00
sidebar_position: 153
2021-02-02 12:00:41 +00:00
---
# kurtPop {#kurtpop}
2021-02-06 15:38:03 +00:00
计算给定序列的 [峰度](https://en.wikipedia.org/wiki/Kurtosis)。
**语法**
2021-02-02 12:00:41 +00:00
``` sql
kurtPop(expr)
```
2021-02-06 15:38:03 +00:00
**参数**
2021-02-02 12:00:41 +00:00
2021-02-06 15:38:03 +00:00
`expr` — 结果为数字的 [表达式](../../../sql-reference/syntax.md#syntax-expressions)。
2021-02-02 12:00:41 +00:00
2021-02-06 15:38:03 +00:00
**返回值**
2021-02-02 12:00:41 +00:00
2021-02-06 15:38:03 +00:00
给定分布的峰度。 类型 — [Float64](../../../sql-reference/data-types/float.md)
2021-02-02 12:00:41 +00:00
2021-02-06 15:38:03 +00:00
**示例**
2021-02-02 12:00:41 +00:00
``` sql
2021-03-22 15:56:44 +00:00
SELECT kurtPop(value) FROM series_with_value_column;