Scripting

Joule core provides the ability to deploy declariative expressions using the custom analytics processor. This has been reused within the context of feature engineering to enable users to define custom calculations within the DSL.

Example

The below example computes, per event, the spend ration based upon a Javascript expression.

features:
  compute:
    spend_ratio:
      scripting:
        macro:
          expression: 1 - spend/avg_spend
          variables:
            avg_spend: 133.78

Attributes

Attribute	Description	Data Type	Required
expression	A valid mathematical expression	String
language	List of supported feature functions	String Default: js
variables	Map of variables to be used during the execution of the expression.	Map