stdDev()

`stdDev()`

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

Parameter	Type	Required	Default	Description
`as`	string	false	`_stddev`	Name of output field.
`field`	string	true		Field to extract a number from and calculate standard deviation over. ^[a]
^[a]If an argument name is not given, `field` is the default argument.

Find the standard deviation of bytes send in http responses

logscale

stdDevBytes := stdDev(field=bytes_sent)