math:log1p() Query Function

Calculates the natural logarithm of the sum of field’s value and 1. For small values x, the result of log1p(x) is much closer to the true result of ln(1 + x) than the floating-point evaluation of log(1.0+x)

Parameters

Name

Type

Required

Default

Description

field

string

Yes

The name of the input field.

as

string

No

_log1p

The name of the output field.

The implied parameter is field.