spread() function

Warning! This page documents an earlier version of Flux, which is no longer actively developed. Flux v0.50 is the most recent stable version of Flux.

The spread() function outputs the difference between the minimum and maximum values in a specified column. Only uint, int, and float column types can be used. The type of the output column depends on the type of input column:

  • For columns with type uint or int, the output is an int
  • For columns with type float, the output is a float.

Function type: Aggregate
Output data type: Integer or Float (inherited from input column type)

spread(column: "_value")

Parameters

column

The column on which to operate. Defaults to "_value".

Data type: String

Examples

from(bucket: "telegraf/autogen")
  |> range(start: -5m)
  |> filter(fn: (r) =>
    r._measurement == "cpu" and
    r._field == "usage_system"
  )
  |> spread()

SPREAD()