1.0 - 8.00 - SAX Example 3: Sliding Window, Bitmap Output - Teradata Vantage

Teradata® Vantage Machine Learning Engine Analytic Function Reference

Product
Teradata Vantage
Release Number
1.0
8.00
Release Date
May 2019
Content Type
Programming Reference
Publication ID
B700-4003-098K
Language
English (United States)

Input

SQL Call

SELECT * FROM SAX (
  ON finance_data3 AS "input" PARTITION BY id ORDER BY period
  USING
  TargetColumns ('expenditure', 'income', 'investment')
  TimeColumn ('period')
  OutputType ('bitmap')
  BitmapLevel (1) 
  WindowType ('sliding')
  WindowSize (20)
  Accumulate ('id')
) AS dt ORDER BY id;

Output

id period_start period_end expenditure_bitmap income_bitmap investment_bitmap
1 1960Q1 1969Q4 {"a":0.81,"b":1.0, "c":0.55,"d":0.87} {"a":0.79,"b":1.0, "c":0.54,"d":0.87} {"a":0.72,"b":1.0, "c":0.52,"d":0.9}
2 1970Q1 1979Q4 {"a":1.0,"b":0.98, "c":0.53,"d":0.93} {"a":1.0,"b":0.95, "c":0.52,"d":0.91} {"a":0.83,"b":1.0, "c":0.83,"d":0.79}
3 1980Q1 1982Q4 {"a":0.0,"b":0.0, "c":0.0,"d":0.0} {"a":0.0,"b":0.0, "c":0.0,"d":0.0} {"a":0.0,"b":0.0 , "c":0.0,"d":0.0}