mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-15 10:52:30 +00:00
723 B
723 B
slug | sidebar_position |
---|---|
/en/sql-reference/aggregate-functions/reference/skewsamp | 186 |
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)
Arguments
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;