thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-11-17 21:24:28 +00:00
Code Issues Packages Projects Releases Wiki Activity
8354cdd0e1
ClickHouse/docs/zh/sql-reference/aggregate-functions/reference/skewsamp.md
benbiti 8354cdd0e1 WIP update-aggregate-funcions-in-zh
2021-03-25 17:09:19 +08:00

668 B
Raw Blame History

toc_priority
151

skewSamp

Computes the sample skewness of a sequence.

It represents an unbiased estimate of the skewness of a random variable if passed values form its sample.

skewSamp(expr)

Parameters

expr — Expression returning a number.

Returned value

The skewness of the given distribution. Type — Float64. If n <= 1 (n is the size of the sample), then the function returns nan.

Example

SELECT skewSamp(value) FROM series_with_value_column