Documentation

math.copysign() function

math.copysign() returns a value with the magnitude x and the sign of y.

Function type signature
(x: float, y: float) => float
For more information, see Function type signatures.

Parameters

x

(Required) Magnitude to use in the operation.

y

(Required) Sign to use in the operation.

Examples

Return the copysign of two columns

import "math"

math.copysign(x: 1.0, y: 2.0)

Use math.copysign in map

import "math"

data
    |> map(fn: (r) => ({_time: r._time, _value: math.copysign(x: r.x, y: r.y)}))

View example input and ouput


Was this page helpful?

Thank you for your feedback!


Upgrade to InfluxDB Cloud or InfluxDB 2.0!

InfluxDB Cloud and InfluxDB OSS 2.0 ready for production.