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Posted to issues@systemml.apache.org by "Matthias Boehm (JIRA)" <ji...@apache.org> on 2017/08/09 20:41:00 UTC

[jira] [Resolved] (SYSTEMML-1824) Wrong transformapply output with col name specification and subset of cols

     [ https://issues.apache.org/jira/browse/SYSTEMML-1824?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matthias Boehm resolved SYSTEMML-1824.
--------------------------------------
       Resolution: Fixed
         Assignee: Matthias Boehm
    Fix Version/s: SystemML 1.0

> Wrong transformapply output with col name specification and subset of cols
> --------------------------------------------------------------------------
>
>                 Key: SYSTEMML-1824
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1824
>             Project: SystemML
>          Issue Type: Bug
>            Reporter: Matthias Boehm
>            Assignee: Matthias Boehm
>             Fix For: SystemML 1.0
>
>
> Given a frame input with 3 rows and column names {{name1, name2}}, the following script produces incorrect results:
> {code}
> X = read("X.csv", data_type="frame", format="csv", header=TRUE);
> spec = "{ids: false, recode: [ name1, name2 ]}";
> [Y,M] = transformencode(target=X, spec=spec);
> spec2 = "{ids: false, recode: [ name2 ]}";
> Z = transformapply(target=X[,2], spec=spec2, meta=M)
> print(toString(Z));
> {code}
> The output is supposed to be 3x1 and properly recoded but currently returns
> {code}
> NaN
> NaN
> NaN
> {code}



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