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https://issues.apache.org/jira/browse/DATAFU-45?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13985722#comment-13985722
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Matthew Hayes commented on DATAFU-45:
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I believe you need to use {{TOBAG(weight)}} to make it a bag so that it can be
crossed with keywords.
> 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(toks)});
> {code}
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