Average

Aggregator accumulating an average

Processing

Subjects are aggregated by summing them up and dividing them by the amount of subjects processed.

An error is thrown if any subject is non-numeric and not nil

If no subjects are processed, the aggregation result is nil

Name Type Description

Name	Type	Description
Nil Handling	string	Defines how to handle `nil` values: ignore: skips `nil` values process: result becomes `nil` if any subject is `nil`
NaN Handling	string	Defines how to handle `NaN` values: ignore: skips `NaN` values process: result becomes `NaN` if any subject is `NaN`

string

Defines how to handle nil values:

string

Defines how to handle NaN values:

This expression evaluates to a dict of the form:

{
  :init any,
  :acc function,
  :out function
}

The supplied values are consistent with aggregation semantics of the Group By step.