stdDev() Query Function

Calculates the standard deviation for a field over a set of events. The result is returned in a field named _stddev

Parameters

Name

Type

Required

Default

Description

field

string

Yes

Field to extract a number from and calculate standard deviation over.

as

string

No

_stddev

Name of output field.

The implied parameter is field.

Examples

Find the standard deviation of bytes send in http responses

humio
stdDevBytes := stdDev(field=bytes_sent)