1.0 - 8.00 - Shapley Value Functions Example 2 Step 2 - 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)

Step 2 uses nPath to create total counts.

CREATE MULTISET TABLE attrtot AS (
  SELECT (
    IND_EMLOP || IND_CLKNI || IND_CLKIN || IND_CLKAC || IND_CLKCO) AS IND,
    num_tot FROM (
      SELECT CASE WHEN num_EMLOP > 0 then '1' ELSE '0' END AS IND_EMLOP
        , CASE WHEN num_CLKNI > 0 then '1' ELSE '0' END AS IND_CLKNI
        , CASE WHEN num_CLKIN > 0 then '1' ELSE '0' END AS IND_CLKIN
        , CASE WHEN num_CLKAC > 0 then '1' ELSE '0' END AS IND_CLKAC
        , CASE WHEN num_CLKCO > 0 then '1' ELSE '0' END AS IND_CLKCO
        , COUNT (intractn_path) AS num_tot
      FROM nPath (
        ON attrib PARTITION BY ind ORDER BY ts
        USING
        Mode (nonoverlapping)
        Pattern ('(B|C|D|E|F)+')
        Symbols (
          int_type = 'EMLOP' AS B,
          int_type = 'CLKNI' AS C,
          int_type = 'CLKIN' AS D,
          int_type = 'CLKAC' AS E,
          int_type = 'CLKCO' AS F
        )
        Result (
          FIRST (ind of ANY(B,C,D,E,F)) AS ind,
          COUNT (int_type of B) AS num_EMLOP,
          COUNT (int_type of C) AS num_CLKNI,
          COUNT (int_type of D) AS num_CLKIN,
          COUNT (int_type of E) AS num_CLKAC,
          COUNT (int_type of F) AS num_CLKCO,
          ACCUMULATE (int_type OF ANY(B,C,D,E,F)
        ) AS intractn_path
      )
    ) AS dt GROUP BY 1,2,3,4,5
  ) a
) WITH DATA;

This query returns the following table:

SELECT * FROM attrtot ORDER BY ind;
attrtot
ind num_tot
00001 138
00010 148
00011 37
00100 138
00101 30
00110 36
00111 7
01000 150
01001 39
01010 31
01011 13
01100 33
01101 19
01110 8
01111 8
10000 138
10001 30
... ...