This query function reads given parameter and assigns the value to a field in the event.

Function Traits: Transformation

ParameterTypeRequiredDefaultDescription
asstringrequired  The name of the output field.
parameter[a]stringrequired  The name of the parameter to read.

[a] The argument name parameter can be omitted.

The parameter name for parameter can be omitted; the following forms are equivalent:

logscale
beta:param("value")

and:

logscale
beta:param(parameter="value")