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)
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
| field | string | Yes | The name of the input field. | |
| as | string | No | _log1p | The name of the output field. |
field is the unnamed parameter.