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Posted to jira@arrow.apache.org by "Alessandro Molina (Jira)" <ji...@apache.org> on 2021/12/01 16:38:00 UTC
[jira] [Assigned] (ARROW-13035) [C++] Create a compute function returning indices of non-zero values
[ https://issues.apache.org/jira/browse/ARROW-13035?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alessandro Molina reassigned ARROW-13035:
-----------------------------------------
Assignee: Alessandro Molina (was: Cristhian Gonzales Castillo)
> [C++] Create a compute function returning indices of non-zero values
> --------------------------------------------------------------------
>
> Key: ARROW-13035
> URL: https://issues.apache.org/jira/browse/ARROW-13035
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Antoine Pitrou
> Assignee: Alessandro Molina
> Priority: Major
> Labels: good-first-issue
>
> This would be similar to Numpy's {{nonzero}} function:
> [https://numpy.org/doc/stable/reference/generated/numpy.nonzero.html]
> {code:python}
> >>> arr = np.array([4,5,0,6,0,5])
> >>> np.nonzero(arr)
> (array([0, 1, 3, 5]),)
> {code}
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