stddev¶
Description¶
Calculate the standard deviation across the group.
Return type¶
float or duration
Domain¶
This is an aggregate function (aggregates rows over a group in aggregate verbs.)
This is a window function (calculates over a group of multiple input rows using windowing.)
Categories¶
Usage¶
stddev( value )
Argument |
Type |
Required |
Multiple |
Constant |
---|---|---|---|---|
value |
numeric or duration |
Required |
Only one |
Variable |