math.erfinv() function

math.erfinv() returns the inverse error function of x.

Function type signature

(x: float) => float

Parameters

x

(Required) Value to operate on.

x should be greater than -1 and less than 1. Otherwise, the operation will return NaN.

Examples

• Return the inverse error function of a value
• Use math.erfinv in map

Return the inverse error function of a value

import "math"

math.erfinv(x: 0.22)// 0.19750838337227364

Use math.erfinv in map

import "math"

data
    |> map(fn: (r) => ({r with _value: math.erfinv(x: r._value)}))