7.00.02 - SQL-MapReduce Call - Aster Analytics

Teradata Aster® Analytics Foundation User GuideUpdate 2

Product
Aster Analytics
Release Number
7.00.02
Release Date
September 2017
Content Type
Programming Reference
User Guide
Publication ID
B700-1022-700K
Language
English (United States)

The overall variable importance is calculated by averaging the importance over 50 trees, as shown below.

SELECT variable, SUM(importance)/50
  FROM Forest_Analyze (ON rft_model)
  GROUP BY variable
  ORDER BY 2 DESC;