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Posted to dev@datafu.apache.org by "Sam Steingold (JIRA)" <ji...@apache.org> on 2014/04/29 21:31:16 UTC

[jira] [Created] (DATAFU-45) RFE: CartesianProduct

Sam Steingold created DATAFU-45:
-----------------------------------

             Summary: RFE: CartesianProduct
                 Key: DATAFU-45
                 URL: https://issues.apache.org/jira/browse/DATAFU-45
             Project: DataFu
          Issue Type: New Feature
            Reporter: Sam Steingold


Given two bags, produce their [Cartesian product|http://en.wikipedia.org/wiki/Cartesian_product]:
{code}
B1: bag{T1}
B2: bag{T2}
CartesianProduct(B1,B2): bag{(T1,T2)}
{code}
Use case:
{code}
toks = TOKENIZE((charray)$0,',');
kwds = CartesianProduct(toks, {1.0/(double)SIZE(keywords)});
{code}




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