mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-08 16:42:04 +00:00
13 lines
399 B
Markdown
13 lines
399 B
Markdown
|
---
|
||
|
|
toc_priority: 36
|
||
|
|
---
|
||
|
|
|
||
|
|
# covarPop {#covarpop}
|
||
|
|
|
||
|
|
Syntax: `covarPop(x, y)`
|
||
|
|
|
||
|
|
Calculates the value of `Σ((x - x̅)(y - y̅)) / n`.
|
||
|
|
|
||
|
|
!!! note "Note"
|
||
|
|
This function uses a numerically unstable algorithm. If you need [numerical stability](https://en.wikipedia.org/wiki/Numerical_stability) in calculations, use the `covarPopStable` function. It works slower but provides a lower computational error.
|