STDEV
Syntax
Standard
Extended
STDEV( value )
STDEV( value
[ FIXED ... | INCLUDE ... | EXCLUDE ... ]
[ BEFORE FILTER BY ... ]
)
More info:
Description
Returns the statistical standard deviation of all values in the expression based on a selection from the population.
Argument types:
value—Fractional number | Integer
Return type: Fractional number
Example
Source data
| Date | Temperature |
|---|---|
2019-03-01 |
5.00 |
2019-03-02 |
0.00 |
2019-03-03 |
-3.00 |
2019-03-04 |
1.00 |
2019-03-05 |
4.00 |
2019-03-06 |
5.00 |
2019-03-07 |
1.00 |
2019-03-08 |
-6.00 |
2019-03-09 |
-6.00 |
2019-03-10 |
-4.00 |
2019-03-11 |
-2.00 |
2019-03-12 |
0.00 |
Formulas:
- Temperature SD:
STDEV([Temperature]).
Result
| Temperature SD |
|---|
3.90 |
Data source support
ClickHouse 21.8, Microsoft SQL Server 2017 (14.0), MySQL 5.7, Oracle Database 12c (12.1), PostgreSQL 9.3, YDB.