COVAR_SAMP
Description
Computes the sample covariance between two numeric variables.
Syntax
COVAR_SAMP(<expr1>, <expr2>)
Parameters
| Parameter | Description |
|---|---|
<expr1> | Numeric expression or column |
<expr2> | Numeric expression or column |
Return Value
Returns the sample covariance of expr1 and expr2, special case:
- If a column of expr1 or expr2 is NULL, the row data will not be counted in the final result.
Example
select covar_samp(x,y) from baseall;
+---------------------+
| covar_samp(x, y) |
+---------------------+
| 0.89442719099991586 |
+---------------------+
