math.signbit() function
math.signbit() reports whether x is negative or negative zero.
Function type signature
(x: float) => bool
For more information, see Function type signatures.
Parameters
x
(Required) Value to evaluate.
Examples
Test if a value is negative
import "math"
math.signbit(x: -1.2)// true
Use math.signbit in map
import "math"
data
|> map(fn: (r) => ({r with _value: math.signbit(x: r._value)}))
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